[institut] FW:POST DOC POSITION IN ORSAY: ferroelectromagnetic materials

Vladimir Jovanovic amoss at phy.bg.ac.yu
Sun Apr 1 21:43:38 CEST 2007


Drage kolege,

u nastavku se nalazi detaljniji opis post-doc mesta u Laboratoriji za fiziku
cvrstog stanja u Orseju (Francuska). Ako ima zainteresovanih, mogu da konkurisu.

Srdacan pozdrav
Vlada

Forwarded message:

dear colleagues,

Please find attached the description of a post doc position (1 year) 
available in the “Solid State Optics” group at the Laboratoire de Physique des
Solides (LPS), University Paris-Sud (Orsay, France) in the frame of the french
ANR contract “FEMMES” based on ferroelectromagnetic materials (FEM).
The position is already open.
Feel free to forward that announcement to anybody who may be concerned.


Sincerely, Alexandra Mougin

-- 
----------------------------------------------------------------------
Alexandra Mougin

Chargée de Recherche
Laboratoire de Physique des Solides
Bâtiment 510, Aile Ouest, Porte 374
Université Paris-Sud
91405 Orsay Cedex
Tél: +33 (0)1 69 15 60 64
Fax: +33 (0)1 69 15 60 86

http://www.lps.u-psud.fr 
----------------------------------------------------------------------

LABORATOIRE DE
PHYSIQUE DES SOLIDES
UMR 8502
Université Paris Sud
Bât. 510
91405 Orsay cedex (France)
Phone: 01 69 15 60 64
e-mail : mougin at lps.u-psud.fr
POST DOCTORAL POSITION AVALAIBLE:
MULTIFERROIQUES/FERROMAGNETIC HETEROSTRUCTURES INVESTIGATED BY MAGNETOOPTICS

A post-doctoral position (1 year) is available in the “Solid State Optics”
group at the Laboratoire de Physique des Solides (LPS), University Paris-Sud
(Orsay, France) in the frame of the ANR contract “FEMMES” based on
ferroelectromagnetic materials (FEM). These materials combine ferroelectricity
and (anti) and/or ferromagnetism, which are related by electromagnetic
coupling. These materials are known since more than 50 years and have been
investigated mainly in the bulk. They have given rise to a significant
theoretical work that accounts for the observed effects and also predicts a
large number of effects not yet evidenced. It is in principle possible to tune
the magnetic order using an electric field or inversely the electric order
using a magnetic field. The consortium “FEMMES” consists of 4 french physics
and chemistry laboratories (At the university of Caen: CRISMAT and at the
University Paris-Sud: SPEC in CEA, UMP in Thalès and our group in LPS). It
merges teams having specific capabilities in terms of growth, transport
measurements, magnetic and structural characterization. The final aim is to
optimize, in FEM materials prepared in thin films, the electric and magnetic
properties, expected to be strongly coupled. We are in particular interested
in tuning the polarization by a magnetic field and the magnetization by an
electric field in order in order to insert them FEM in heterostructures and
propose new concepts in spintronics. The archetype of FEM is BiFeO3 that
exhibit both ferroelectric and ferromagnetic Curie temperature well above
300K. By testing different buffer layers, the influence of strains on the
electric and magnetic states is addressed. Next, artificial heterostructures
have been grown combining FEM and usual ferromagnets, suitable for testing the
magnetoelasting coupling. These multisystems should enable a better
understanding of the physics of FEM and in particular that of the
magnetoelectric coupling. The main interest of the “Solid State Optics” group
at Orsay concerns magnetization reversal studies in thin film structures and
associated nanostructures. In FEM, ferromagnetic properties are investigated
by magnetometry and Kerr or Faraday microscopy. Strains, ferroelectricity and
antiferromagnetism can be analyzed by microscopy in linear birefringence.
Complementary information can be obtained by optical and magneto-optical
measurements in second harmonic generation of light. All these technics are
essential to evidence the coupling between magnetic and electric orders,
which is at the heart of the project. The applicant, he (or she), will be
enrolled in the Laboratoire de Physique des Solides at Orsay,
that is the largest institute devoted to condensed matter physics in France.
The laboratory is a part of the Université Paris Sud and is also associated
with the CNRS. It hosts permanently around 200 people. The laboratory brings
together under one roof all the facilities and know-how needed
to create, characterize and study new materials. The trainees will find in the
laboratory a broad range of experimental techniques such as microscopy,
spectroscopy, scattering experiments... together with an important group of
theoreticians. The successful applicant will also have the opportunity to
visit and acquire specific knowledge from the laboratories involved in the ANR
contract. The applicant must have a PhD in Physics, materials science or
related discipline. A previous experience in the field of magneto-optics or
FEM phenomena is desirable and will be valued. There are no restrictions on
nationality and even french citizens are eligible. Monthly salary is around
2000 euros, net. The applicant should send a full CV, a list of publications
and the names of at least two recommendation referees to : Alexandra Mougin
mougin at lps.u-psud.fr




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