Magnetic Structures of 2D and 3D Nanoparticles

Jean-Claude Serge Levy, professor of physics at University Paris Diderot since 1985, now emeritus, has published 150 papers and edited 11 books. As a specialist in solid state physics, magnetism, and structures, he worked on spin-wave resonance in thin films, amorphous thin films, multilayers, 2D and 3D nanoparticles, and on several classes of fractal sets with different levels of randomness. He also worked on magnetic and atomic surface rearrangements as well as on 3D bulk arrangements such as the ones with icosahedral symmetry (1982), now known as quasicrystals. He achieved complementary works on elasticity and diffraction in these new materials as well as in fractal constructions. Since 1986 Prof. Levy has been involved in research about magnetic structures and magnetic excitations under dipolar interaction, in thin films, ultrathin films, and 2D and 3D nanoparticles. He evidenced topological defects such as vortex and antivortex in magnetic materials. He has been teaching at all academic levels and has developed links between different academic disciplines in order to promote both their self-interaction and layperson interest in academic university life.

Magnetic structures of 2D and 3D nanoparticles. Magnetic anisotropy and magnetization reversal in self-organized two-dimensional nanomagnets. High aspect ratio nanoparticles: growth, assembly, and magnetic properties. Magnetoferritin nanoparticles as promising building-blocks for three-dimensional magnonic crystals. Magnetic properties of fractal nanostructures. Vortex lines in three-dimensional magnetic nanodots by Langevin simulation. Spin-wave normal modes of magnetic vortices. Magnonic crystals: from simple models towards application. Physical properties of 2D spin-crossover solids from an elastonic description: effect of shape, size, and spin-distortion interactions.