Volume 12, 2011JDN 18 - Neutrons et Simulations
|Page(s)||105 - 121|
|Section||Electronic Structure, Magnetism and Phonons|
|Publié en ligne||9 juin 2011|
Numerical simulations and magnetism
Institut Rayonnement Matière de Saclay, Laboratoire Léon Brillouin, CEA-CNRS UMR 12, 91190 Gif-sur-Yvette, France
Owing to recent developments in numerical and computer science, numerical simulations have become an important trend in physics and a useful tool to design and explain experiments. In the context of this school, organized by the French neutron scattering society, SFN, this lecture presents two examples of numerical simulations aiming at computing the spin-spin correlation function measured by neutron scattering. The first is an introduction to the linear spin wave theory. The second offers some aspects of Monte Carlo simulations of the classical spin dynamics. To serve as a prelude of these two examples, we start with a brief introduction to neutron techniques and to their use in measuring the spin dynamics in magnets.
© Owned by the authors, published by EDP Sciences 2011