The purpose of our studies is to study
and control the atomic and electronic structure of interfaces and
surfaces in magnetic nanoparticules, nanofils, thin films and multi-layer
in order to determine their influence on the magnetic and magnetotransport
properties.
The nano-objects (nanoparticles, nanowires, nanosticks, nanocubes,…)
we study are of an interest either as model objects (nanocubes,
nanowires) or for their potential applications (high density recording
or in the medical field).
The multi-layer systems are either magnetoresistive devices for
application into spintronic (tunnel junctions, GMR systems, spin
filters, biased bilayers), or as model systems which enable us to
test our structural and electronic models and to develop original
methods for local magnetic properties measurements.
Our objective is to determine how the properties can be chosen
and optimized by controlling the structure of the objects, their
dimension, their morphology and the qualities of the interfaces
and/or surfaces (atomic and electronic structures) in the synthesis
process and in post-treatment. We also study the processes of assembly
which make possible to modulate the properties of these nanomaterials
imposing or prohibiting the co-operative effects between objects.
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