5 Papers
47 Citations
L. Berger is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Ferromagnetism & Nanocrystalline material. The author has an hindex of 4, co-authored 5 publications.
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Papers
Magnetism of nanocrystalline Finemet alloy: experiment and simulation
TL;DR: In this article, a detailed analysis of the correlation between the microstructure of annealed samples and their magnetic properties is provided, with emphasis on the matrix-nanocrystalline grain interface which is shown to exhibit peculiar magnetic behavior.
22
Effects of surface anisotropy and vacancies in ferromagnetic nanoparticles
TL;DR: In this article, the effect of surface anisotropy and vacancies upon the ground magnetic state of ferromagnetic nanoparticles is discussed, based on a random site-diluted classical Heisenberg Hamiltonian with nearest neighbor interactions, surface and core anisotropies, and a Monte Carlo-Metropolis approach with simulated annealing for energy minimization.
20
Monte Carlo simulation of magnetic properties in nanocrystalline-like systems
TL;DR: In this article, the magnetization and magnetic susceptibility are calculated as a function of temperature for different values of the interfacial exchange interactions, and the magnetic behavior of different regions has been explained in terms of a polarization mechanism acting on the surface and in the core, leading to magnetic correlation between the spins.
8
Magnetic Properties of Nanocrystalline Materials: A Monte Carlo Simulation
TL;DR: In this paper, the magnetic properties of interfacial regions between ferromagnetic nanograins and the residual matrix in nanocrystalline materials are modelled using Monte Carlo simulation.
1
Ferromagnetic nanoparticles with strong surface anisotropy: Spin structures and magnetization processes
TL;DR: In this article, Monte Carlo simulations are used to investigate the effect of surface anisotropy on the spin configurations and hysteresis loops of ferromagnetic nanoparticles.