Tag: 2017

Pep  Fontcuberta delivered an Invited Lecture at the International Symposium on Integrated Functionalities (ISIF) 2017 at Delhi (10-13th December)

The Invited Lecture, was given by Gervasi Herranz at the Center for Correlated Electron Systems IBS (Prof. Tae Won Noh’s Group), 4 December 2017.
The Title of the Seminar was “In-situ imaging of electric field-induced ferroelastic domain motion in SrTiO3 “

The invited talk was given by Gervasi Herranz on ”Structural distortions in perovskite oxide heterostructures: a tale of two modes” 

10th International conference on Advanced Materials and Devices

Spintronic devices currently rely on magnetic switching or controlled motion of magnetic domain walls by an external magnetic field or electric current. Achieving the same degree of magnetic controllability using an electric field has potential advantages including low power consumption. Here, an approach to electrically control local magnetic properties will be discussed [1-5]. The method is based on recurrent strain transfer from regular ferroelastic stripe domains in a ferroelectric BaTiO3 substrate to magnetostrictive films (e.g. CoFe, CoFeB, and Fe). Dominance of the strain-induced magnetoelastic anisotropy in these heterostructures causes full imprinting of ferroelectric domain patterns into ferromagnetic films and strong pinning of magnetic domain walls onto ferroelectric boundaries [6,7]. Optical polarization microscopy measurements of the ferromagnetic and ferroelectric domain structures indicate that domain correlations and strong inter-ferroic domain wall pinning are maintained in an applied electric field. As a result, deterministic electric-field control over the formation and erasure of ferromagnetic domains [1-3] and reversible motion of magnetic domain walls [4,5] are obtained. In addition, regular modulations of magnetic anisotropy in strain-coupled multiferroic heterostructures provide a versatile platform for the excitation and manipulation of spin waves [8,9]. These findings open up new routes towards electric-field driven spintronics and magnonics.

Hello everyone! I’m Mikko Kataja and I come from Finland, where I did my PhD in Aalto University on magneto-optically active plasmonic nanoparticles. I am now in ICMAB in Multifunctional Oxides and Complex Structures research group to explore the possibilities that active oxide materials, such as ferromagnetic and ferroelectric oxides, offer in the field of optics, especially for active nanoscale optical devices. In my freetime, I enjoy cooking and board games.

Pep Fontcuberta delivers an Invited lecture at “Magnetic Coupling in Naostructured Materials” entitled “Spin diffusion and proximity effects in metal/ferromagnetic-insulator bilayer”.

Here you can find the link to the conference website: https://sites.google.com/view/macmat2017/home

 https://sites.northwestern.edu/woe24/

Ignasi Fina will give an invited talk on Photoelectric effects in ferroelectric thin films (13th September of 2017) on the EMN MEETING ON EPITAXY in Barcelona.

http://icmab.es/phd-thesis-defense-by-blai-casals-on-15th-september-at-11-00-am

J. Gazquez, M. Stengel, R. Mishra, M. Scigaj, M. Varela, M. A. Roldan, J. Fontcuberta, F. Sánchez, and G. Herranz

Phys. Rev. Lett. 119, 106102  (2017)

M Foerster, F Macià, N Statuto, S Finizio, A Hernández-Mínguez, S Lendínez, P V Santos, J. Fontcuberta, J M Hernàndez, M Kläui & L Aballe

Nature Communications, 8, 4017, (2017)

The magnetoelastic effect—the change of magnetic properties caused by the elastic deformation of a magnetic material—has been proposed as an alternative approach to magnetic fields for the low-power control of magnetization states of nanoelements since it avoids charge currents, which entail ohmic losses. Here, we have studied the effect of dynamic strain accompanying a surface acoustic wave on magnetic nanostructures in thermal equilibrium. We have developed an experimental technique based on stroboscopic X-ray microscopy that provides a pathway to the quantitative study of strain waves and magnetization at the nanoscale. We have simultaneously imaged the evolution of both strain and magnetization dynamics of nanostructures at the picosecond time scale and found that magnetization modes have a delayed response to the strain modes, adjustable by the magnetic domain configuration

Our colleagues Mathieu Mirjolet and Jike Lyu  are going to  deliver oral talks  at the upcoming 2017 COST TO-BE Fall Meeting, to be held in Riga, Latvia from September 11th to 13th.

http://www.cfi.lu.lv/eng/conferences/costto-be/

Fanmao Liu merited the Cum-Laude for his PhD defense on “Photoresponse of Ferroelectric BaTiO3 thins films”.

Congratulations, Fanmao!

Fanmao Liu, our fresh PhD, starts his professional carrier at  SUN YAT-SEN UNIVERSITY in Guangzhou (China). Good luck  and remember ICMAB ! “

Today, Fanmao Liu has successfully defended his PhD thesis entitled “Photoresponse of ferroelectric BaTiO3 thin films” supervised by Prof. Fontcuberta and Dr. Fina. Congratulations for him and thanks to the members of the jury: Prof. Brahim Dkhil, Dr. Mariano Campoy, and Dr. Ingrid Cañero.

Next Tuesday July 25th, at 11:30h, Ingrid Cañero will give the talk entitled “Electronic, chemical and structural effects on the optical properties of (nano)ferroelectric oxides and related compounds” at Sala d’Actes Matgas at ICMAB.

CONCURSO DE JÓVENES INVESTIGADORES DE LA XXVI REUNION BIENAL DE LA REAL SOCIEDAD ESPAÑOLA DE FÍSICA

Hendrik Ohldag, distinguished Lecturer for 2017, IEEE Magnetics Society, will give the lecture: 

“Ultrafast and Very Small: Discover Nanoscale Magnetism With Picosecond Time Resolution Using X-Rays”

Ignasi Fina delivers two talks at the E-MRS Meeting in Strasbourg (25th May 2017):

“Electrically driven magnetic memory effect in Antiferromagnetic-Ferromagnetic mixed phase system” 

“Electroresistance in BaTiO3 junctions” 

Fanmao finalist of Poster competition at #ISAF2017! Congratulations! #Ferroelectric.

In the picture, getting a Diploma.

Next Friday 28th April. Lecture of Dr. Marina Tyunina (University of Oulu, Finland) on “Optical properties of ferroelectric thin films”

March for Science: On 22ns April we joint it.

https://www.marchforscience.com/

http://scientistsdatingforum.org/manifesto-march-for-science-barcelona/

El proper dia 22 d’abril, Dia de la Terra, es celebrarà la Marxa per la Ciència, una marxa de recolzament a la ciència, en més de 400 ciutats de tot el món.

La iniciativa va néixer als Estats Units com a resposta a la profunda preocupació de científics i ciutadans per la creixent onada de polítiques anticientífiques i l’erosió de la imatge social de la ciència. Posteriorment, ciutats de tot el món s’han afegit al moviment; a Espanya: Barcelona, Madrid, Sevilla i Girona. 

Els promotors de la Marxa per la Ciència fem una crida a la ciutadania a comprometre’s per destacar i compartir els valors de la ciència. Volem treballar per fer de la pràctica de la investigació, el desenvolupament i la innovació una activitat oberta i inclusiva, perquè la ciència contribueixi al millor i major benestar de la nostra societat i per assegurar-nos que les proves sòlides, obtingudes a través del mètode científic, siguin la base del desenvolupament de les accions polítiques.

March for Science-Barcelona #M4ScBCN 

Es celebrarà a la plaça interior del Parc de Recerca Biomèdica de Barcelona (PRBB), el dissabte 22 d’abril de 2017 de 12h a 16h.
La Marxa per la Ciència Barcelona està sent organitzada localment a iniciativa del Scientists Dating Forum amb la col·laboració de múltiples científics i ciutadans tant a nivell individual com d’associacions.
La Marxa per la Ciència Barcelona és un esdeveniment dels científics de Barcelona per a tothom!
El comitè organitzador de la Marxa per la Ciència està obert a tothom i necessita la teva ajuda. Anima’t a col·laborar!
 

Programa preliminar:

Declaració “Marxa per la Ciència Barcelona”
Taula rodona sobre ciència i política. 
Espectacle de ciència divulgativa
Activitat relacionada amb el Dia de la Terra
Punts de menjar i beure, i música en directe

Ignasi Fina will give a lecture for undergraduate students of Physics Degree at University of Barcelona on April 20th on Trends of ferroelectrics and magnetic materials.

https://sites.google.com/site/orgaisoe/

Last day at ALBA 

Last of three days at Alba Synchrotron studying antiferromagnetic order under the application of electric field

Rejuvenating MULFOX. Students of “Advanced Nanomaterials” course from UAB visit MULFOX and ICMAB (05-04-2017).

A useful present: “Effective Science Communication: A practical guide to surviving as a scientist”

http://iopscience.iop.org/book/978-0-7503-1170-0?utm_medium=email&utm_source=iop&utm_term=&utm_campaign=11357-33733&utm_content=Effective%20Science%20Communication

1) Pep Fontcuberta, Chairing a session on ” Frontiers in Quantum Matter Heterostructures” 

2 ) Gervasi Herranz. Presenting “Giant magneto-optical activity induced by polarons in manganites”  

3) Mengdi Qian,  Presenting “Reversing ON/OFF resistance states in BaTiO3 ferroelectric tunnel junctions: thickness and writing time dependencies”

https://www.list.lu/en/conference/to-be-spring-meeting-2017/

Enric Candell has been awarded as “Honoris Causa” by the University of Rennes

“Biomorphic Science”

By Prof. Ivan K. SCHULLER
Department of Physics and Center for Advanced Nanoscience
University of California, San Diego

Date: 31st MARCH
Time: 12:00 h
Place: ICMAB – Sala d’actes Carles Miravitlles

Mathieu Mirjolet is presenting his work on Transparent Metals at “EMMI / IDS-FunMat / EJD-FunMat 7th Training School and Annual Meeting 2017” hold at Aveiro.

“Oxides jump to the first position in power electronic applications.Welcome to Ga2O3”.

Follow:

https://www.compoundsemiconductor.net/article/101262-Gallium-oxide-ready-to-take-on-GaN-and-SiC.html

Fanmao Liu has been selected to receive an IEEE Society Student Travel Grant for the attendance of the 2017 Joint IEEE International Symposium on the Application of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices, and the Piezoresponse Force Microscopy and Polar Phenomena at the Nanoscale Workshop, to be held in Atlanta, U.S.A. May 7-11, 2017. Congratulations Fanmao !

“We congratulate all Iranians on the Nowruz, the Iranian New Year, which occurred this year on 20th March. Especial compliments to Morteza Alizadeh, who presently works in our lab for a 6-month internship. We accompany our felicitation with the image of a traditional Haft-Sin.”

GRETA AT TEDx TALKS

Thanks to you all. ICMAB jumps to the 4th position in the ranking of research centers (139) from Spanish Scientific Council (CSIC)

http://research.webometrics.info/en/consejo_es

Dual critical thickness for lattice and electronic instabilities in the LaAlO3/SrTiO3 interface.

Session A37a: Complex Oxide Interfaces and Heterostructures – LaAlO3/SrTiO3

9:24 AM Monday, March 13, 2017

Directional heat dissipation generated by surface acoustic waves in Co/Pt/LiNbO3 structures.

Session X47: Domain Wall Motion

9:48 AM Friday, March 17, 2017

“Skyrmion à la carte” by Dr. Bertrand Dupé (University of Kiel & Johannes Guttenberg University (Mainz)

Date: 10th MARCH

Time: 12:00 h

Place: ICMAB – Sala d’actes Carles Miravitlles.

Congratulations Ignasi. Your contribution “Electrically driven magnetic memory effect in Antiferromagnetic-Ferromagnetic mixed phase system” by I. Fina et al, has been ACCEPTED for ORAL presentation at the E-MRS 2017 Spring Meeting

Congratulations Mengdi: The abstract Disentangling tunneling and non-tunneling contributions on electroresistance in BTO-based ferroelectric nanometric junctions” by Mendi Qian et al, has been ACCEPTED for ORAL PRESENTATION at the E-MRS 2017 Spring Meeting

We are now at Bessy Synchrotron in Berlin: “Strain distribution in BTO films and its effect on their photovoltaic response” Beamline KMC-2

Experiments completed: Beam time at ALBA synchrotron “Imaging static and dynamic magnetoelectric responses in multiferroic structures at room temperature”, at beam line BL24 – CIRCE, from 23/02/2017 to 24/02/2017.

Mildred Dresselhaus, the pioneering scientist and engineer, has sadly passed away at the age of 86. Born in 1930 in Brooklyn and raised in the Bronx, Dresselhaus was the first female Institute Professor at MIT – where she focused mainly on graphite, graphite intercalation compounds, carbon nanotubes and low-dimensional thermoelectrics – and a significant figure in the development of nanoscience as a new field of energy research.

She was awarded the National Medal of Science in 1990 for her research into the electronic properties of materials, as well as for promoting opportunities for women in science and engineering. Millie also received the Presidential Medal of Freedom from President Obama in 2014 and was the first woman to win the National Medal of Science in Engineering. Her work was distinguished by many other awards, including the National Medal of Science and the Enrico Fermi Award, and she was the first solo recipient of a Kavli Prize for her contribution to the study of phonons, electron-phonon interactions, and thermal transport in nanostructures

“Dependence of antiferromagnetic order on electric field in NiO/PMN-PT structures”, at beam line BL29 – BOREAS

Experiments underway: Beam time at ALBA synchrotron : “Magnetic and electronic properties of Ce-doped Y3Fe5O12 thin films probed by x-ray magnetic spectroscopy”, at beam line BL29 – BOREAS, from 14/02/2017 to 17/02/2017.

Josep Fontcuberta (07/02/2017) has been selected member of this Committee uncharged of promoting and organizing Courses and Tutorials. 

“Uncommon cationic occupancy in epitaxial CoFe2O4 thin films probed by EXAFS spectroscopy”, at beam line BL22 – CLAESS, from 09/02/2017 to 12/02/2017. Experiments completed

During  these last 15 days our Dielectric Lab has been used by an external used in the framework of the NFFA European network. We are happy that a equipment that has been set by our group can be now used by Scientist and Industrial Researchers from all around Europe.