Tag: 2013

“Albert Fert: The Rugby Who Got the Nobel Prize”

http://www.youtube.com/watch?v=jyV208Bqax0

“How science goes wrong. Scientific research has changed the world. Now it needs to change itself”.

http://www.economist.com/news/leaders/21588069-scientific-research-has-changed-world-now-it-needs-change-itself-how-science-goes-wrong

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

September 30, 2013,
Patricia de Coux successfully defended successfully her PhD thesis.
Title: “Integration of ferrimagnetic CoFe2O4 epitaxial films with silicon”
Supervisors: Dr. Bénédicte Warot-Fonrose (CEMES-CNRS) and Dr. Florencio Sánchez (ICMAB-CSIC)

Title: “Integration of ferrimagnetic CoFe2O4 epitaxial films with silicon”

Supervisors: Dr. Bénédicte Warot-Fonrose (CEMES-CNRS) and Dr. Florencio Sánchez (ICMAB-CSIC)

Time: 11 am

Place: ICMAB Conference Room

Phase-Coexistence and Short-Range Magnetic Order in Magnetic Multiferroics

Author: Josep Fontcuberta

Rhodes 25th-30th August 2013

High mobility conduction and superconductivity at (110) and (111) LaAlO₃/SrTiO₃ interfaces

Sorrento, Italy, May 20-23, 2013

Electronic reconstructions at surfaces and interfaces of transition metal oxides

University Rome 2, Tor Vergata, Rome, Italy, May 31st, 2013

Multiferroic Materials: overview and trends

NNL Institute Nanoscience-CNR,University Lecce, Lecce, Italy, June 3rd, 2013

Phase coexistence and magnetically-tuneable polarization in cycloidal multiferroic

Authors: I. Fina, V. Skumryev, D.O’Flynn, G. Balakrishnan, J. Fontcuberta

Sorrento, Italy, May 20-23, 2013

Electron distribution among 3d-eg orbitals in manganite thin films

Authors: D. Pesquera, F. Sánchez, G. Herranz, Barla, E. Pellegrin, F. Bondino,  E. Magnano and  Josep Fontcuberta.

Sorrento, Italy, May 20-23, 2013

Orbital and electronic reconstructions at the surfaces and interfaces of transition metal oxides

Authors: D. Pesquera, N. Dix, M. Scijal, E. Pellegrin, A. Barla, F. Bondino, E. Magnano, F. Sánchez, G. Herranz and J. Fontcuberta

Buenos Aires, Argentina, April 8-12, 2013

Surfaces and interface: Engineering tools for emerging properties in transition metal oxides

Halle,Germany, 16th May  2013

The lectures will be on the “Electronic structure of SrTiO3” and “Magneto-Optics”.

To be held on 2-14 September 2013, in Cargèse, Corsica (France) see more information in https://sites.google.com/site/orgaisoe/

“Optics for Multiferroic Domain Imaging”

 Held on July 21-26, 2013 inWittenberg (Germany). http://www.physik.uni-halle.de/esmf6/

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;

David Pesquera and Gervasi Herranz
Bach Beamline 25-31 January 2013

Josep Fontcuberta

Conference: Electron occupancy of 3d orbitals in manganite thin films

Participation: Regular Oral Presentation

Congress: Frontiers in Electronic Materials, Nature Conference

June 17th-20th 2012

Aachen (Germany)