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TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology

Thursday, 19 April 2012
(at 13:00 in room 115, Hallwachsstr. 3)
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Light-sensitive molecular layers and electric fields as tools for controlling magnetism in nano-structured systems

Liza Herrera Diez

Departement NANOsciences
Institut Neel CNRS, Grenoble

Controlling magnetism by means of electric fields and light is of great interest in view of practical applications in novel spin-dependent technologies. In this seminar I will present the successful modulation of the magnetic properties of light-sensitized magneto-electric and magnetic field-effect devices. The interaction with light is achieved through a GaMnAs /organic-dye hybrid structure while in field effect experiments a voltage is applied between ultra-thin films of FePt and a top gate electrode. Light exposure or electric field application in these devices generates changes in Curie temperature and coercive field that can be detected by magneto-transport measurements. A magnetic response to a controlled stimulus not involving a magnetic field is in both cases intimately related to the properties of the surface of the magnetic material.

Brief Bio:

2011- present: Post-Doctoral Researcher at Institut N\E9el, Grenoble, France. 2008-2010: PhD in Physics, Max-Planck Institut f\FCr Festk\F6rperforschung, Stuttgart, Germany and \C9cole Polytechnique F\E9d\E9ral de Lausanne, Lausanne Switzerland. 2007: Master Thesis Max-Planck Institut f\FCr Festk\F6rperforschung, Stuttgart, Germany. 2003-2007: Master in Chemistry, National University of C\F3rdoba, Argentina.

slides (pdf)

Invited by G. Cuniberti

Within the nanoSeminar

last modified: 2021.05.05 Wed
author: webadmin