Tag: 2015

Yu Chen

I studied in Shanghai University as a master student.On 2nd Nov. 2016, I incorporated to ICMAB.
In ICMAB, I study the transport properties of the LAO/STO 2DEGs and the interaction of transport with light. My work also focuses in imaging magnetic and f
erroelectric domains in multiferroic structures.

 

 

Jike Lyu

Jike Lyu, master degree from Northeastern University in China.  He worked on ferroelectric films on Silicon under the supervision of Florencio Sanchez for P.hD degree (2015 – 2019)

 

LEO GREGOIRE

Léo Gregoire

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

2015

Spin Ice at ICMAB

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)

Florencio Sánchez co-organizes MRS

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

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

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

Romain Bachelet, Patricia de Coux, Bénédicte Warot-Fonrose, Vassil Skumryev, Gang Niu, Bertrand Vilquin, Guillaume Saint-Girons and Florencionchez
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

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

PhD Defense of Diego Gutiérrez

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

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

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

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

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. 

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