Author: JAGS

LEO GREGOIRE

Léo Gregoire

Written by JAGS on . Posted in Former Members.

Student on Engineering from Nantes Polytechnic University (France, joins our team for a 4 months internship).

2015

Spin Ice at ICMAB

Written by JAGS on . Posted in News. Leave a Comment

Dra Laura Povo (London Centre for Nanotechnology  and University College London), is visiting our Laboratory and has given a Conference on “Dy2Ti2O7 Pyrochlore Spin Ice: Exotic Magnetism and Thin Films” (20-05-2015)

2015

Written by JAGS on . Posted in Presentations.

REGULAR ORAL PRESENTATIONS

 

Imaging the electrooptic response of ferroelectrics at the diffraction limit
Authors: O. Vlasin, B. Casals, D. Gutiérrez, N. Dix, F. Sánchez, G. Herranz
E-MRS 2015 Conference
Lille, May 2015

2015

Written by JAGS on . Posted in Conferences.

INVITED CONFERENCES

Spin-orbit mediated magneto-resistance in oxide antiferromagnets and metal/ferrimagnet bilayers
Josep Fontcuberta
WE-Heraeus-Seminar: “Oxide Spintronics: Novel Materials, Transport and Emerging Phenomena”
7 – 9 January 2015 at the Physikzentrum Bad Honnef/Germany

Epitaxial integration of ferromagnetic and ferroelectric oxides with silicon
F. Sánchez
E-MRS Fall Meeting
Warsaw 2015

Interface and lattice strain effects in ferroelectric BaTiO3/StTiO3 superlattices
F. Sánchez
E-MRS Fall Meeting
Warsaw 2015

Magnetoresistance in metal/insulating ferrimagnet bilayers
J. Fontcuberta
E-MRS Fall Meeting
Warsaw 2015

Multiferroic epitaxial oxide heterostructures on Si(001)
M. Scigaj, N. Dix, I. Fina, R. Bachelet, V. Skumryev, B. Casals, G. Herranz, J. Fontcuberta, F. Sánchez
European Materials Research Society (EMRS) Spring Meeting
Lille (Francia), May 13, 2015

Florencio Sánchez co-organizes MRS

Written by JAGS on . Posted in News. Leave a Comment

Symposium: “Oxide thin films and nanostructures for advanced electrical, optical and magnetic applications” at the  Materials Research Society Spring Meeting – MRS, San Francisco (USA), 06-10 de abrilde 2015

Florencio Sánchez co-organizes EMRS

Written by JAGS on . Posted in News. Leave a Comment

The Symposium: “Towards oxide-based electronics: growth and applications of oxide thin films and heterostructures
at the European Materials Research Society Fall Meeting – EMRS, Varsovia (Polonia), 15-18 September 2015

large roomtemperature

Large Room-Temperature Electroresistance in Dual-Modulated Ferroelectric Tunnel Barriers

Written by JAGS on . Posted in News.

Greta Radaelli , Diego Gutiérrez , Florencio Sánchez , Riccardo Bertacco , Massimiliano Stengel , and Josep Fontcuberta
Adv. Mater. 2015, DOI: 10.1002/adma.201405117

Pt/BaTiO3/La0.7Sr0.3MnO3 tunnel junctions.

It is demonstrated that reversing the polarization direction of a ferroelectric barrier in a tunnel junction leads to a change of junction conductance and capacitance, with concomitant variations on the barrier height and effective thickness, both contributing to produce larger electroresistance

Highlight Spinels on Silicon tamany web

Functional spinel oxide heterostructures on silicon

Written by JAGS on . Posted in News.

Romain Bachelet, Patricia de Coux, Bénédicte Warot-Fonrose, Vassil Skumryev, Gang Niu, Bertrand Vilquin, Guillaume Saint-Girons and FlorencioSánchez
CrystEngComm,16, 10741-10745 (2014), DOI: 10.1039/C4CE01817F

Novel spinel heteroepitaxial structures composed of ferrimagnetic spinel CoFe2O4 and ultrathin γ-Al2O3 buffer layers are integrated on Si(111).

maria espinola

Maria Espinola

Written by JAGS on . Posted in Former Members, Uncategorized.

Degree in Physics (University of Barcelona). Final degree project “Magneto-optical spectroscopy of ferromagnetic garnet thin film” with Gervasi Herranz and Blai Casals.

July 2015

2015

Written by JAGS on . Posted in Publications.

Engineering two-dimensional superconductivity and Rashba spin-orbit coupling in LaAlO3/SrTiO3 quantum wells by selective orbital occupancy
Gervasi Herranz, Gyanendra Singh, Nicolas Bergeal, Alexis Jouan, Jérôme Lesueur, Jaume Gázquez, María Varela, Mateusz Scigaj, Nico Dix, Florencio Sánchez and Josep Fontcuberta
Nature Comms.  6:6028 (2015)

Large Room-Temperature Electroresistance in Dual-Modulated Ferroelectric Tunnel Barriers
Greta Radaelli; Diego Gutiérrez; Florencio Sánchez; Riccardo Bertacco; Massimiliano Stengel; Josep Fontcuberta,
Adv. Mater. 27, 2602-2607(6) (2015)

Multiferroic RMnO3 thin films
Josep Fontcuberta,
Compt. Rendus,  16, 204-226 (2015)

Selecting Steady and Transient Photocurrent Response in BaTiO3 Films
Fanmao Liu, Ignasi Fina, Diego Gutiérrez, Greta Radaelli, Riccardo Bertacco, Josep Fontcuberta
Adv. Electron. Mater. 1, 150017 (2015)

Conducting interfaces between amorphous oxide layers and SrTiO3(110) and SrTiO3(111)
Scigaj, Mateusz; Gazquez, Jaume; Varela, Maria; Fontcuberta Josep; Herranz, Gervasi Sanchez, Florencio
Solid State Ionics 28, 68 (2015)

Instability and Surface Potential Modulation of Self-Patterned (001)SrTiO3 Surfaces
Lucía Aballe, Sonia Matencio, Michael Foerster, Esther Barrena, Florencio Sánchez, Josep Fontcuberta, and Carmen Ocal
Chemistry of Materials 27, 6198-6204, (2015)

Polar domain walls trigger magnetoelectric coupling
Josep Fontcuberta, Vassil Skumryev, Vladimir Laukhin, Xavier Granados & Ekhard K. H. Salje
Scientific Reports,  5, 13784 (2015)

Imaging of Nonuniform Ferroelectricity and Strain at the Diffraction Limit
O. Ondrej Vlasin, Blai Casals, Nico Dix, Diego Gutiérrez, Florencio Sánchez & Gervasi Herranz.
Scientific Reports, 5, 15800 (2015)

PhD Defense of Diego Gutiérrez

Written by JAGS on . Posted in News. Leave a Comment

Diego Gutiérrez successfully defended his PhD Thesis entitled ” Electrical properties of BaTiO3, CoFe2O4 and La(Ca,Sr)1/2MnO3 thin films and their importance for active barriers in tunnel transport”. Congratulations Diego !.”

NEW CALL FOR PhD GRANTS

Written by JAGS on . Posted in News. Leave a Comment

Make Your PhD at MULFOX and discover and enjoy research!

A Call for Grants is just opened. Who can apply ?: EU Nationals, holding a Degree and a Master on: Physics, Materials Science, Geology (Crystallography), Inorganic Chemistry, Materials Engineering, and related education profiles.


Good marks. Scientific curiosity and enthusiasm and good communication skills.

Click here to open  our projects.

The details of the Grant Call (in Spanish):
https://sede.educacion.gob.es/catalogo-tramites/profesores/formacion/universitarios/fpu/fpu-2014.html


IMPORTANT: The deadline for application is on 6 February. Interested candidates should contact us well ahead.

Our Research in the Media

Written by JAGS on . Posted in News. Leave a Comment

Our recent article on oxide interfaces (G. Herranz et al., Nature Communications 6, 6028 (2015)) has aroused the interest of the media.

Here you find a collection of articles in the press (in Spanish):

http://www.lavanguardia.com/vida/20150114/54422627326/descubren-nuevas-propiedades-de-los-electrones-en-nuevo-material.html

Efe futuro

http://www.efefuturo.com/noticia/propiedades-electrones-nuevo-material/

Intereconomía

 http://www.radiointereconomia.com/2015/01/14/descubren-propiedades-en-los-oxidos-de-transicion-para-electronica-del-futuro/

El confidencial

http://www.elconfidencial.com/ultima-hora-en-vivo/2015-01-14/descubren-propiedades-en-los-oxidos-de-transicion-para-electronica-del-futuro_467173/

NEW GRANT CALL FOR PhDs

Written by JAGS on . Posted in Job offers.

CALL CLOSED

Make Your PhD at MULFOX and discover and enjoy research!

A Call for Grants is just opened. Who can apply ?: EU Nationals, holding a Degree and a Master on: Physics, Materials Science, Geology (Crystallography), Inorganic Chemistry, Materials Engineering, and related education profiles.

Good marks. Scientific curiosity and enthusiasm and good communication skills.

Click here to open  our projects.

The details of the Grant Call (in Spanish):

https://sede.educacion.gob.es/catalogo-tramites/profesores/formacion/universitarios/fpu/fpu-2014.html

IMPORTANT: The deadline for application is on 6 February 2015. Interested candidates should contact us well ahead.

Electrons moving in 2D: symmetry matters

Written by JAGS on . Posted in News. Leave a Comment

The development of today’s electronics is reaching fundamental limits and novel concepts and materials are researched to achieve ever faster and more efficient electronic devices. In this regard, oxides are well positioned, as they display a fascinating complexity of electronic phases –not present in conventional semiconductors–that may open new pathways.

The interface between LaAlO3 and SrTiO3 is the oxide quantum well (QW) par excellence, where superconductivity and magnetism emerge. In LaAlO3/SrTiO3 QWs electrons move in two dimensions forming a two-dimensional electron gas (2DEG, Box a). However, not all the electrons reside in the same QW subband (Box b) and, indeed, they behave differently depending on which orbital are they occupying. We demonstrate that the symmetry of the conduction band inside the QWs can be selected, so that the properties of electrons vary largely. In particular, we show that in the superconductive state Cooper pairs do not bind in the same way either when we change the number of electrons in the 2DEG by electric fields (Box a) or when the direction of confinement is changed (Box b). We also show that choosing the confinement plane allows manipulating the spin-dependent transport in these QWs.

Our work opens a groundbreaking route to manipulate selectively electrons in two dimensions. See more @ G. Herranz at al., Engineering two-dimensional superconductivity and Rashba spin–orbit coupling in LaAlO3/SrTiO3 quantum wells by selective orbital occupancy, Nature Communications 2014, doi:10.1038/ncomms7028. 

2014

Written by JAGS on . Posted in Conferences.

INVITED CONFERENCES

A fresh view on antiferromagnets
J. Fontcuberta
10th International Workshop on Magnetism and Superconductivity
Coma-ruga (Tarragona). Spain, 30 June-4  July 2014

 

 

2013

Written by JAGS on . Posted in Conferences.

INVITED CONFERENCES

Orbital and electronic reconstructions at the surfaces and interfaces of transition metal oxides
Josep Fontcuberta
X- LAW3M: X – LatinAmerican Workshop on Magnetism, Magnetic Materials and Their Applications
Buenos Aires, Argentina, April 8-12, 2013

“Phase-Coexistence and Short-Range Magnetic Order in Magnetic Multiferroics”
Josep Fontcuberta
Joint European Magnetic Symposia JEMS 2013
Rhodes 25th-30th August

“Magnetoelectric coupling via interface-coupling and phase-separation in multiferroics”
Josep Fontcuberta.
Italian National Conference on Condensed Matter Physics
Milano, 9th-13th September 2013

“Interface coupling and phase separation: keys to magnetoelectric coupling and polarization memory in multiferroics”
Josep Fontcuberta
EUROMAT 2013, European Congress & Exhibition on Advanced Materials and Processes
Sevilla 8th-12th September 2013

“Engineering electronic occupancy at surfaces and interfaces of transition metal oxides”
Josep Fontcuberta
Jülich Centre for Neutron Science, JCNS Workshop 2013, Trends and Perspectives in Neutron Scattering: Magnetism and Correlated Electron Systems
Tutzing, Germany, 7-10 October 2013

“Engineering the Orbital Electronic Occupancy of Metal-oxide Manganite Surfaces”
Gervasi Herranz
MRS Spring 2013, Symposium S, “Nanostructured Metal Oxides for Advanced Applications”.
San Francisco, USA, 1 – 5 April, 2013

“Polarized Light for Domain Imaging of Multiferroic Systems..”
Gervasi Herranz
Challenges in Multiferroics/Magnetoelectrics
Strasbourg, France, 4 – 6 December, 2013.

Large out-of-plane ferroelectric polarization in flat epitaxial BaTiO3/CoFe2O4 heterostructures
N. Dix, I. Fina, R. Bachelet, C. Kanamadi, L. Fàbrega, J.M. Rebled, F. Peiró, J. Fontcuberta
Nanoselect (Consolider project) Meeting
Sant Feliu de Guixols, July 15, 2013

INVITED SEMINARS

“Surfaces and interface: Engineering tools for emerging properties in transition metal oxides”
Martin Luther University of Halle-Wittenberg, Halle,Germany, 16th May  2013

“Electronic reconstructions at surfaces and interfaces of transition metal oxides ”
Josep Fontcuberta
Institute for Superconductors, Oxides and Other Innovative Materials and Devices SPIN, CNR
University Rome 2, Tor Vergata
Rome, Italy, May 31st, 2013

“Multiferroic Materials: overview and trends ”
Josep Fontcuberta
Dipartimento di Matematica e Fisica, Università del Salento, NNL Institute Nanoscience-CNR, University Lecce
Lecce, Italy, June 3rd, 2013

Magnetometry

Written by JAGS on . Posted in Facilities.

The Low Temperature and Magnetometry Service is part of the ICMAB Scientific Technical Services Unit and its facilities are available to all the research crew of the Institute, as well as, to external users. It is devoted to the measurement of the magnetic, electric properties under specific conditions of external magnetic field and temperature.

In order to achieve the demand, the Service is equipped with two SQUID based magnetometers (Quantum Design MPMS system), devoted to magnetometry measurements and two Quantum Design PPMS systems, devoted to electrical transport measurements, as well as magnetometry measurements.

https://icmab.es/ltm

2014

Written by JAGS on . Posted in Publications.

Room-temperature antiferromagnetic memory resistor
X. Marti, I. Fina, C. Frontera, R.J. Paull, J. Clarkson, J. Kudrnovský, I. Turek,, D. Yi, Jian Liu, J.-H. Chu, C. Nelson, E. Arenholz, Q. He, L. You, S. Salahuddin, J. Fontcuberta, T. Jungwirth, R. Ramesh
Nature Materials  Publishedf on-line : 26 January  2014

Perovskite oxide substrates for conducted growth of oxide thin film
F. Sánchez, C. Ocal and J. Fontcuberta
Chem. Soc. Rev.   2014, 43 (7), 2272 – 2285

Bandwidth-limited control of orbital and magnetic orders in half-doped manganitesby epitaxial strain
D. Gutiérrez, G. Radaelli, F. Sánchez, R. Bertacco, J. Fontcuberta
Phys. Rev. B 89, 075107 (2014)

Electrical on-off switching of magnetism at the Fe/BaTiO3 interface
G. Radaelli, D. Petti, E. Plekhanov, I. Fina, P. Torelli, B. R. Salles, M. Cantoni, C. Rinaldi, D. Gutiérrez, G. Panaccione, M. Varela, S. Picozzi, J. Fontcuberta, R. Bertacco
Nature Comm. Published 3 March (2014)

Anisotropic magnetoresistance in antiferromagnetic semiconductor Sr2IrO4 epitaxial heterostructure
I. Fina, X. Martí, D. Yi, J. Liu, J.H. Chu, C. Rayan-Serrao, S. Suresha, A. B. Shick, J. Železný, T. Jungwirth, J. Fontcuberta, R. Ramesh
Nature Comm.  Published 10 Sep (2014)

Spin Hall magnetoresistance as a probe for surface magnetization
M. Isasa, A. Bedoya-Pinto, F. Golmar, F. Sánchez, L. E. Hueso, J. Fontcuberta and F. Casanova
Appl Phys. Lett. 105, 142402 (2014)

Epitaxial ferromagnetic oxide thin films on silicon with atomically sharp interfaces
P. de Coux, R. Bachelet,  B. Warot-Fonrose, V. Skumryev, L. Lupina, G. Niu, T. Schroeder, J. Fontcuberta, and F. Sánchez
Appl. Phys. Lett. 105, 012401 (2014)

Multiferroic Iron Oxide Thin Films at Room Temperature
M. Gich, I. Fina, A. Morelli, F. Sánchez, M. Alexe, J. Gàzquez, J. Fontcuberta, and A. Roig
Advanced Mater. (2014)

Yttria-Stabilized Zirconia/SrTiO3 Oxide Heteroepitaxial Interface with Symmetry Discontinuity
M. Scigaj, N. Dix, M. Cabero, A. Rivera-Calzada, J. Santamaria, J. Fontcuberta, G. Herranz, and F. Sánchez
Applied Physics Letters 104, 251602 (2014)

Two-dimensional electron gases at LaAlO3/SrTiO3 interfaces: orbital symmetry and hierarchy engineered by crystal orientation
D. Pesquera, M. Scigaj, P. Gargiani, A Barla, J. Herrero-Martín, E. Pellegrin, S. M. Valvidares, J. Gázquez, M. Varela, N. Dix, F. Sánchez, J. Fontcuberta
Phys Rev. Lett. 113, 156802 (2014)

Expanding Effective-Medium Theory to Optical Diamagnetic Responses in Magnetoplasmonic Colloids
O. Vlasin, O. Pascu, A.Roig, G. Herranz.
Phys Rev. Applied, 2 054003 (2014)

Functional spinel oxide heterostructures on silicon
Bachelet, P. de Coux, B. Warot-Fonrose, V. Skumryev, G. Niu, B. Vilquin, G. Saint-Girons,
CrystEngComm (Communication) 16, 10741 (2014)

Interface and bulk charge localization in manganite thin films
Pesquera, M. Wojcik, E. Jedryka, V. Laukhin, N. Dix, F. Sánchez, G. Herranz, and J. Fontcuberta
Advanced Materials Interfaces 1, 1400079 (2014)

EELS Tomography in multiferroic nanocomposites: from spectrum images to spectrum volume
L. Yedra, A. Eljarrat, J. M. Rebled, L. López-Conesa, N. Dix, F. Sánchez, S. Estradé, and F. Peiró
Nanoscale 6, 6646 (2014)

Towards Mo/Au based TES detectors for Athena/X-IFU
L. Fàbrega, A. Camón, J.L. Costa-Krämer, C. Pobes, M. Parra-Borderías, I. Fernández-Martínez, R. Jáudenes, P. Cereceda, M.T. Ceballos, X. Barcons, J. Sesé, J. Martín-Pintado, L. Gottardi, M. Bruijn, M. Jambunathan, R.H. den Hartog, J. van der Kuur, J.W. den Herder, D. Barret
SPIE Proceed Series, Vol. 9144, 91445P, 7 pgs (2014)

The X-ray Integral Field Unit (X-IFU) for Athena
L. Ravera, D. Barret, J.-W.den Herder, L. Piro, R. Clédassou, E. Pointecouteau, Ph. Peille, F. Pajot, M. Arnaud, C. Pigot, L. Duband, Ch. Cara, R.H. den Hartog, L. Gottardi, H. Akamatsu, J. van der Kuur, H.J. van Weers, J. Plaa, C. Macculi, S. Lotti, G. Torrioli, F. Gatti, L. Valenziano, M. Barbera, X. Barcons, M.T. Ceballos, L. Fàbrega, J.M. Mas-Hesse, M.J. Page, P.R. Guttridge, R. Willingale, G.W. Fraser, S. Paltani, L. Genolet, E. Bozzo, G. Rauw, E. Renotte, J. Wilms, C.Schmidt. (39/27)
SPIE Proceed Series, Vol. 9144, 91442L, 13 pgs (2014)

Imagen1

Magneto-optic responses boosted by plasmons

Written by JAGS on . Posted in News. Leave a Comment

Imagen1

 

OndřejVlašín, OanaPascu, Anna Roig, and GervasiHerranz

Phys. Rev. Applied 2, 054003 (2014)  DOI: http://dx.doi.org/10.1103/PhysRevApplied.2.054003

 

We show that very diluted dispersions of ferromagnetic metal nanoparticles in diamagnetic hosts show a large, linear response under an applied magnetic field, which is of interest for emerging applications in sensing, integrated optical communications, and magneto-optical current transformers and transducers.  We present also a theory that describes accurately these results and that can be further extended to describe the optical properties of e.g., metal inclusions in polymers or glasses.

Mengdi Qian

Written by JAGS on . Posted in News. Leave a Comment

Mengdi Qian from Sichuan University, has joined our group to do a PhDThesis. Welcome Mengdi 🙂

David Pesquera

Written by JAGS on . Posted in News. Leave a Comment

We are very please to inform that the successfully defended Thesis “Strain, and interface-induced charge, spin and orbital orderings in transition-metal oxide perovskites” by David Pesquera, has received the maximum qualification: ” EXCEL·LENT CUM LAUDE”. Congratulations David !

prl113

Two-Dimensional Electron Gases at LaAlO3/SrTiO3 Interfaces: Orbital Symmetry and Hierarchy Engineered by Crystal Orientation

Written by JAGS on . Posted in News. Leave a Comment

prl113

 

D. Pesquera, M. Scigaj, P. Gargiani, A. Barla, J. Herrero-Martín, E. Pellegrin, S. M. Valvidares, J. Gázquez, M. Varela, N. Dix, J. Fontcuberta, F. Sánchez, and G. Herranz

Phys. Rev. Lett. 113, 156802 (2014), DOI: http://dx.doi.org/10.1103/PhysRevLett.113.156802

 

Quantum wells at the LaAlO3/SrTiO3 interface with tunable electron states

Quantum wells with d-electrons at the LaAlO3(LAO)/SrTiO3(STO) interface exhibit physical properties, such as superconductivity or magnetism, unseen in conventional semiconductors (Si, Ge, GaAs, …). We have demonstrated that the symmetry of the conduction band inside the QWs can be selected at whish. This opens up novel perspectives to manipulate the electronic properties of QWs at the LAO/STO interface.

apl2014

Spin Hall magnetoresistance at Pt/CoFe2O4 interfaces and texture effects

Written by JAGS on . Posted in News. Leave a Comment

apl2014

 

MirenIsasa, Amilcar Bedoya-Pinto, Saül Vélez, Federico Golmar, Florencio Sánchez, Luis E. Hueso, Josep Fontcuberta, and Fèlix Casanova
Applied Physics Letters 105, 142402 (2014) 

 SPINTRONICS WITH NON-MAGNETIC MATERIALS. The neighborhood   makes all difference

It has been discovered that  electric resistance of a nonmagnetic metal (Pt in our case) is depending on  magnetization state of neighboring insulating ferromagnetic layer, namely on the atomic planes forming the interface and their crystallographic orientation.

Conference of M Scigal at E-MRS Fall Meeting at Warzaw (Poland)

Written by JAGS on . Posted in News. Leave a Comment

Multiferroic CoFe2O4-BaTiO3 epitaxial heterostructures on Si (001))
Authors: M. Scigal, N. Dix, I. Fina, R. Bachelet, V. Sumryev, G. Herranz, J. Fontcuberta and F. Sánchez.
Symposium J: “Alternative semiconductors integration on Si microelectronics” E-MRS Fall Meeting 15-17th September 2014 at Warzaw (Poland).

Invited Conference of Josep Fontcuberta at E-MRS Fall Meeting at Warzaw (Poland)

Written by JAGS on . Posted in News. Leave a Comment

Orbital and magnetic ordering in half-doped manganite thin films: the crucial role of strain and bandwidth
Authors: G. Radaelli, D. Guitierrez, D. Pesquera, A. Barla, F. Bondino, E. Magnano, F. Sánchez, R. Bertacco and Josep Fontcuberta
Symposium O: “Recent progress in new high-Tc superconcductors and related multifunctional and magnetic materials” E-MRS Fall Meeting 15-17th September, 2014 at Warzaw (Poland)

Invited Conference of Josep Fontcuberta at E-MRS Fall Meeting

Written by JAGS on . Posted in News. Leave a Comment

Electronic reconstructions at oxide surfaces and interfaces
Authors: D. Pesquera, M. Valvidares, J. Herrero, P.Gargiani, E. Pellegrin, A. Barla, F.  Bondino, E. Magnano, F. Sánchez, G. Herranz, and J. Fontcuberta
Symposium V: “Functional perovskite systems” E-MRS Fall Meeting 15-17th September 2014. Warzaw (Poland)

2014

Written by JAGS on . Posted in Presentations.

REGULAR ORAL PRESENTATIONS

 

Polarization-dependent electric transport barriers in metal-ferroelectric-metal heterostructures
Author: J. Fontcuberta
NanoSelect –Annual meeting  2014
Sant Feliu de Guíxols (Girona), June 25th – 26th – 27th  2014

 

Orbital occupancy and superconductivity in unconventional LAO/STO interfaces
Author: G. Herranz
NanoSelect –Annual meeting  2014
Sant Feliu de Guíxols (Girona), June 25th – 26th – 27th  2014

 

Spectroscopic determination of magnetic Phase diagram of Half-doped manganites thin films
Author: D. Pesquera
NanoSelect –Annual meeting  2014
Sant Feliu de Guíxols (Girona), June 25th – 26th – 27th  2014

 

High mobility electron gases at amorphous interfaces
Author: M. Scigaj
NanoSelect –Annual meeting  2014
Sant Feliu de Guíxols (Girona), June 25th – 26th – 27th  2014

 

Photoinduced effects in metal-ferroelectric-metal Heterostructures
Author: F. Liu
NanoSelect –Annual meeting  2014
Sant Feliu de Guíxols (Girona), June 25th – 26th – 27th  2014

 

Strain effects on magnetic and electric phase diagrams of half–doped manganite epitaxial thin films
Author: D. Gutierrez
NanoSelect –Annual meeting  2014
Sant Feliu de Guíxols (Girona), June 25th – 26th – 27th  2014

Materials for Information technologies at your hands

Written by JAGS on . Posted in CALL CLOSED.

CALL CLOSED 

A PhD Grant & Project. A recent Call of grants from Generalitat de Catalunya (AGAUR) to finance PhD research projects.

Candidates should hold a Master degree.
Dead line on 22nd September 2014

OUR LABORATORY IS SEARCHING ENTHUSIASTIC STUDENTS TO WORK ON:

  • Ferroelectric thin films on silicon
  • Exotic electronic states at honey-comb oxide surfaces and interfaces
  • Photoconductivity at ferroic films and interfaces 

The ultimate objectives of these projects is the development of nanomaterials and devices to be used in new generations of memories and components for communications

Candidates must hold:

a) Degree in Physics, Nanoscience, Material’s engineering, Chemistry or similar. b) Hold a MASTER degree on related topics ; c) Excellent academic records ( > 2) and d) a strong motivation for experimental science.

Application: Before 17 September 2014. Submit the CV and a motivation letter to Dr. F. Sánchez and Dr. Gervasi Herranz.

Contacts ICMAB:

Prof. Josep Fontcuberta; Dr. F. Sánchez i Dr. Gervasi Herranz
E-mail: fontcuberta@icmab.es; fsanchez@icmab.es; gherranz@icmab.es
Laboratory of Multifunctional Oxides and Complex Structures http://www.icmab.es/mulfox/

 

Download more info 

Discovering research at our Laboratory

Written by JAGS on . Posted in CALL CLOSED.

CALL CLOSED

  • A recent call from the Spanish Research Council (CSIC) offers grants to undergraduate students to discover and collaborate on research projects at CSIC laboratories.

  • Successful candidates will receive a grant of 2000 € for a stage of 3 months at CSIC laboratories
  • Candidates should have completed between 40% and 80% credits of the corresponding degree
  • Candidates should hold an average mark ≥ 8.0/10
  • For application visit: https://sede.csic.gob.es/Intro2014
  • More details can be found in the attached BOE call.
  • Please, contact us for more information (fontcuberta@icmab.cat)

 

Carlos Rubio

Written by JAGS on . Posted in Former Members.

Final project of the Nanoscience and Nanotechnology degree (UAB).

2013 – 2014.

2013

Written by JAGS on . Posted in Books.

Responsive Photonic Nanostructures: Smart Nanoscale Optical Materials
Ed. By Royal Soc. Of Chem., 2013
ISBN: 978-1-84973-653-4)
O. Pascu, G. Herranz, A. Roig. Chapter Book: CHAPTER 10 “Chemical Routes to Fabricate Three-Dimensional Magnetophotonic Crystals”.

Responsive Photonic Nanostructures (Smart Nanoscale Optical Materials)
Edited by Royal Society of Chemistry (2013) Editor: Prof. Yadong Yin,
ISBN: 978-1-84973-653-4, DOI:10.1039/9781849737760
Oana Pascu, Gervasi Herranz and Anna Roig
CHAPTER 10: “Chemical Routes to Fabricate Three‐Dimensional Magnetophotonic Crystals”

2013

Written by JAGS on . Posted in Presentations.

REGULAR ORAL PRESENTATIONS

 

Temperature dependent magnetic domain reconfiguration in La2/3Sr1/3MnO3 thin films
D. Pesquera, V. Skumryev, F. Sanchez, G. Herranz and J. Fontcuberta
12th Joint MMM/Intermag Conference
Chicago USA, January 14-18, 2013

 

Direct magnetoelectric effect in BaTiO3 – CoFe2O4 epitaxial heterostructures
I. Fina, N. Dix, J. Rebled, F. Peiro, S. Estrade, L. Fábrega, F. Sánchez and J. Fontcuberta
12th Joint MMM/Intermag Conference
Chicago USA, January 14-18, 2013

 

Phase coexistence and magnetically-tuneable polarization in cycloidal multiferroic
I. Fina, V. Skumryev, D.O’Flynn, G. Balakrishnan, J. Fontcuberta
MAMA-Trends: Trends, challenges and emergent new phenomena in multi functional materials
Sorrento, Italy, May 20-23, 2013

 

Electron distribution among 3d-eg orbitals in manganite thin films
D. Pesquera, F. Sánchez, G. Herranz, Barla, E. Pellegrin, F. Bondino, E. Magnano and J. Fontcuberta.
MAMA-Trends: Trends, challenges and emergent new phenomena in multi-functional materials
Sorrento, Italy, May 20-23, 201

 

High mobility conduction and superconductivity at (110) and (111) LaAlO3/SrTiO3 interfaces.
G. Herranz, F. Sanchez, N. Dix, M. Scigaj, J. Fontcuberta.
MAMA-Trends: Trends, challenges and emergent new phenomena in multi-functional materials
Sorrento, Italy, May 20-23, 2013

 

Two-dimensional electron liquids at the interface between two wide-bandgap insulators.
G. Herranz, M. Scigaj, N. Dix, J. Gázquez, M. Varela, N. Bergeal, J. Lesueur, F. Sánchez, J. Fontcuberta
XXXIV Annual Meeting of the Spanish Royal Society of Physics
València, Spain, 15 – 19 July 2013

 

Orientational Tuning of 2D-Superconductivity in LaAlO3/SrTiO3.
G. Herranz, M. Scigaj, N. Dix, J. Gázquez, N. Bergeal, J. Lesueur, F. Sánchez, J. Fontcuberta
20th International Workshop on Oxide Electronics
Singapore, 22 – 25 September 2013

 

High mobility conduction at (110) and (111) LaAlO3/SrTiO3 interfaces
G. Herranz, M. Scigaj, N. Dix, J. Gazquez, M. Varela, F. Sanchez, J. Fontcuberta
Materials Research Society (MRS) Fall Meeting
Boston (USA), 2013

 

Large out-of-plane ferroelectric polarization in flat epitaxial BaTiO3 on CoFe2O4 magnetoelectric heterostructures
N. Dix, I. Fina, R. Bachelet, L. Fabrega, C. Kanamadi, J. Fontcuberta, F. Sanchez
Materials Research Society (MRS) Fall Meeting
Boston (USA), 2013

 

Ultra-flat BaTiO3 epitaxial films on Si(001) with high out-of-plane polarization
M. Scigaj, N. Dix, I. Fina, R. Bachelet, B. Warot-Fonrose, J. Fontcuberta, F. Sanchez
European Materials Research Society (MRS) Fall Meeting
Warsaw (Poland), 2013

 

 

High mobility conduction at (110) and (111) LaAlO3/SrTiO3 interfaces
G. Herranz, M. Scigaj, N. Dix, J. Gazquez, M. Varela, F. Sanchez, J. Fontcuberta
European Materials Research Society (MRS) Spring Meeting
Strasbourg (France), 2013

 

Pulsed laser deposition of epitaxial BaTiO3/CoFe2O4 magnetoelectric heterostructures
N. Dix, I. Fina, R. Bachelet, L. Fabrega, C. Kanamadi, J. Fontcuberta, and F. Sanchez
European Materials Research Society (MRS) Spring Meeting
Strasbourg (France), 2013

 

Ultra-flat BaTiO3 epitaxial films on Si(001) with large out-of-plane polarization M. Scigaj, N. Dix, I. Fina, R. Bachelet, B. Warot-Fonrose, J. Fontcuberta, F. Sanchez
European Materials Research Society (MRS) Spring Meeting
Strasbourg (France), 2013

 

Ultra-flat BaTiO3 epitaxial films on Si(001) with large out-of-plane polarization
. Scigaj, N. Dix, I. Fina, R. Bachelet, B. Warot-Fonrose, J. Fontcuberta, F. Sanchez
European Workshop on “Functional oxides for integration in micro- and nano-electronics”
Autrans (France), April 2013

 

Dynamic Magnetoelectric Coupling in Co/PZT Bilayers
O. Vlasin, R. Jarrier, G. Herranz and S. Cherifi.
58th Annual Conference on Magnetism and Magnetic Materials
Denver, Colorado, 4–8 November 2013

 

Imaging Dynamic Magnetoelectric Coupling in Multiferroic Bilayers
O. Vlasin, S. Cherifi, N. Dix, F. Sanchez, J. Fontcuberta and G. Herranz
58th Annual Conference on Magnetism and Magnetic Materials
Denver, Colorado, 4–8 November 2013

 

Room temperature electroresistance in BaTiO3 -based tunnel junctions
G. Radaelli, D. Gutiérrez, N. Dix, F. Sànchez, R. Bertacco and J. Fontcuberta
WOE20. Workshop on Oxide Electronics
Singapore, September 22-25, 2013

 

Exploring interfacial and strain effects in multifunctional oxide heterostructures
D. Pesquera
First Scientific Meeting of ICMAB-ICN-CiN2 students
Bellaterra (Spain), May 13-14th 2013

 

Room temperature electroresistance in BaTiO3-based ferroelectric tunnel junctions
G. Radaelli, D. Gutiérrez, N. Dix, F. Sànchez, R. Bertacco and J. Fontcuberta
WORKSHOP NANOSELECT 2013
St. Feliu de Guixols-Spain, July 14-16, 2013

 

Fine tuning of electron distributions in 3d and 4d transition metal oxides by strain and interface engineering
D. Pesquera, A. Barla, E. Pellegrin, F. Bondino, E. Magnano, P. Gargiani, J. Herrero, M. Valvidares, N.Dix, F. Sanchez, G. Herranz, J. Fontcuberta
Joint European Magnetic Symposia
Rhodes (Greece), August 25-30 th 2013

 

Electrical switching of the magnetic order at the Fe/BaTiO3 interface
G. Radaelli, D. Petti, P. Torelli, B. R. Salles, I. Fina, D. Gutiérrez, E. Plekhanov, C. Rinaldi, M. Cantoni, S. Picozzi, J. Fontcuberta, G. Panaccione and R. Bertacco
Joint European Magnetic Symposia
Rhodes (Greece), August 25-30 th 2013

 

Strain tuning of LaNiO3 thin films
D. Pesquera, A. Barla, E. Pellegrin, F. Bondino, E. Magnano, J.M. Rebled, N.Dix, F. Sanchez, G. Herranz, J. Fontcuberta
European Materials Research Society – Fall Meeting
Warsaw (Poland), September 16-20 th 2013

 

Conference: 58th Annual Conference on Magnetism and Magnetic Materials
D. Gutiérrez, G. Radaelli, N. Dix, F. Sànchez, R. Bertacco and J. Fontcuberta
58th Annual Conference on Magnetism and Magnetic Materials
Denver-USA, November 4-8, 2013

 

POSTER PRESENTATIONS

 

Orbital reconstructions in transition metal oxide heterostructures
D. Pesquera, A. Barla, E. Pellegrin, F. Bondino, E. Magnano, P. Gargiani, J. Herrero, M. Valvidares, N.Dix, F. Sanchez, G. Herranz, J. Fontcuberta
Workshop on Oxide Electronics
20, September 23-25 th 2013, Singapore

 

Half-doped manganite thin films for tunable electroresistance tunnel junctions
D. Gutiérrez, G. Radaelli, N. Dix, F. Sànchez, R. Bertacco and J. Fontcuberta
Workshop on Oxide Electronics
20, September 23-25 th 2013, Singapore

 

Electrical switching of the magnetic order at the Fe/BaTiO3 interface
G. Radaelli, D. Petti, P. Torelli, B. R. Salles, I. Fina, D. Gutiérrez, E. Plekhanov, C. Rinaldi, M. Cantoni, S. Picozzi, J. Fontcuberta, G. Panaccione and R. Bertacco
Workshop on Oxide Electronics
20, September 23-25 th 2013, Singapore

 

Half-doped manganite thin films for tunable resistance in tunnel junctions
D. Gutiérrez, G. Radaelli, N. Dix, F. Sànchez, R. Bertacco and J. Fontcuberta
Joint European Magnetic Symposia
August 25-30 th 2013, Rhodes (Greece)

2013

Written by JAGS on . Posted in Publications.

J.M. Rebled, M. Foerster, S. Estradé, F. Rigato, C. Kanamadi, F. Sánchez, F. Peirò, J. Fontcuberta.
Ti diffusion in (001) SrTiO3 – CoFe2O4 epitaxial heterostructures: blocking role of a MgAl2O4 buffer
Physical Chemistry Chemical Physics 15, 18274 (2013)

I. Fina, N. Dix, J. M. Rebled, P. Gemeiner, X. Martí, F. Peirò, B. Dkhil, F. Sánchez, L. Fàbrega, J. Fontcuberta.
Direct magnetoelectric effect in ferroelectric – ferromagnetic epitaxial heterostructures
Nanoscale 5, 8037 (2013)

N. Dix, I. Fina, R. Bachelet, L. Fàbrega, C. Kanamadi, J. Fontcuberta, F. Sánchez
Large out-of-plane ferroelectric polarization in flat epitaxial BaTiO3 on CoFe2O4 heterostructures
Applied Physics Letters 102, 172907 (2013)

M. Scigaj, N. Dix, I. Fina, R. Bachelet, B. Warot-Fonrose, J. Fontcuberta, F. Sánchez
Ultra-flat BaTiO3 epitaxial films on Si(001) with large out-of-plane polarization
Applied Physics Letters 102, 112905 (2013)

Phase coexistence and magnetically-tuneable polarization in cycloidal multiferroics
I. Fina, D.O’Flynn, G. Balakrishna, J. Fontcuberta
Phys. Rev. B Rapid Comm. 88, 100403(R) (2013)

Characterization of a Mo/Au thermometer for ATHENA
M.Parra-Borderías, I. Fernández-Martínez, L.Fàbrega, A.Camón, O.Gil, J.L. Costa-Krämer, R.González-Arrabal, J.Sesé, J.Bueno and F.Briones
IEEE Transactions on Appl. Supercond. 23, 2300405 (2013)

The Hot and Energetic Universe: the X-ray integral Field Unit (X-IFU) for Athena
D. Barret, J. W. den Herder, L. Piro, L. Ravera, R. Den Hartog, C. Macculi, X. Barcons, M. Page, S. Paltani, G. Rauw, J. Wilms, M. Ceballos, L. Duband, L. Gottardi, S. Lotti, J. de Plaa, E. Pointecouteau, C. Schmid, H. Akamatsu, D. Bagliani, S. Bandler, M. Barbera, P. Bastia, M. Biasotti, M. Branco, A. Camon, C. Cara, B. Cobo, L. Colasanti, J.L. Costa-Kramer, L. Corcione, W. Doriese, J.M. Duval, L. Fàbrega, F. Gatti, M. de Gerone, P. Guttridge, R. Kelley, C. Kilbourne, J. van der Kuur, T. Mineo, K. Mitsuda, L. Natalucci, T. Ohashi, P. Peille, E. Perinati, C. Pigot, G. Pizzigoni, C. Pobes, F. Porter, E. Renotte, J. L. Sauvageot, S. Sciortino, G. Torrioli, L. Valenziano, D. Willingale, C. de Vries, H. van Weers
arXiv:1308.6784 [astro-ph.IM]

Magneto-optical characterization

Written by JAGS on . Posted in Facilities.

We have two Magneto-optic Kerr Effect (MOKE) setups operating in wide-field (WF) and scanning laser (SL) modes, respectively. WF-MOKE allows us to image magnetic domains in ultrathin (0.5-50 nm) ferromagnetic films with perpendicular magnetic anisotropy with resolution down to 1 um^2. It is equipped with a blue LED source and a high-speed/resolution camera to capture magnetization dynamics in (quasi-)real-time.

SL-MOKE operates with a focused laser in a selected range of wavelengths (405-632 nm) and can probe the out-of-plane magnetization orientation locally (~1 um^2). The sample is mounted on a motorized x-y translation stage, which allows scanning the sample with high precision and mapping the magnetization orientation over a larger area (e.g., 30×30 um^2).

Liu Fanmao

Written by JAGS on . Posted in Former Members.

Master degree of Materials Science and Engineering in Beihang University.

Phd student 2013 – 2017 under the supervision of Prof. Josep Fontcuberta. 

He starts his professional carrier at  SUN YAT-SEN UNIVERSITY in Guangzhou (China)

Muhammad Awais

Written by JAGS on . Posted in Former Members.

Student of Material sciences and Engineering (Major:Manufacturing) at Ghulam Ishaq Khan Institute of Engineering Sciences and Technology Kpk, Pakistan. Under supervision of  Dr.Gervasi Herranz for two months during 2013.

Conference of Dr. Fabio Miletto Granozio del CNR-SPIN Institute, Naples, Italy at ICMAB

Written by JAGS on . Posted in News. Leave a Comment

26 d’abril, a les 15:00 hores, ICMAB, Sala d’Actes.

Electrostatics and photoresponse of 2D electron gases in oxide interfaces.

Fabio Miletto Granozio, Umberto Scotti di Uccio, Carmela Aruta, Emiliano Di Gennaro, CNR-SPIN, Complesso Universitario di Monte Sant’Angelo, via Cintia 80126 Napoli, Italy.

The properties of the 2DEGs found at the LaAlO3/SrTiO3, LaGaO3/SrTiO3 and NdGaO3/SrTiO3 interfaces are addressed and compared.

An analysis of atomic displacements and of EEL spectra collected at the Ti L and the O K-edge allows us to estimate the lattice polarization P(z) and the valence state of Ti as a function of the z coordinate across the interface [1]. Our variable wavelength photoconductivity data [2] show a very peculiar response to light common to all polar-nonpolar interfaces. Our interfaces show a persistent photoresponse under both UV (i.e., above STO gap) and visible light. We argue that different absorption mechanisms are at play in the two different cases.

An electrostatic analysis based on our P(z) data allows us to estimate the electric displacement vector D(z), the charge distribution, and the possible location of the electron and hole populations under light irradiation. The data are discussed in the light of the unending debate on the origin of the 2DEG in oxide interfaces.

[1] C. Cantoni et al., Advanced Materials (2012) DOI: 10.1002/adma.201200667

[2] E. Di Gennaro et al., Advanced Optical Materials, (2013) submitted; U. Scotti di Uccio et al, arXiv:1206.5083v1;

 

© MULFOX. All rights reserved.