Stochastic Landau-Lifshitz-Gilbert Equation with Delayed Feedback Field
نویسندگان
چکیده
منابع مشابه
Weak Solutions of the Stochastic Landau-lifshitz-gilbert Equation
Abstract. The Landau-Lifshitz-Gilbert equation perturbed by a multiplicative spacedependent noise is considered for a ferromagnet filling a bounded three-dimensional domain. We show the existence of weak martingale solutions taking values in a sphere S. The regularity of weak solutions is also discussed. Some of the regularity results are new even for the deterministic Landau-Lifshitz-Gilbert e...
متن کاملGinzburg-landau Vortices Driven by the Landau-lifshitz-gilbert Equation
A simplified model for the energy of the magnetization of a thin ferromagnetic film gives rise to a version of the theory of GinzburgLandau vortices for sphere-valued maps. In particular we have the development of vortices as a certain parameter tends to 0. The dynamics of the magnetization is ruled by the Landau-Lifshitz-Gilbert equation, which combines characteristic properties of a nonlinear...
متن کاملAn Effective Integrator for the Landau-Lifshitz-Gilbert Equation
We consider a lowest-order finite element scheme for the Landau-Lifshitz-Gilbert equation (LLG) which describes the dynamics of micromagnetism. In contrast to previous works from the mathematics literature, we examine LLG including the total magnetic field induced by physical phenomena described in terms of exchange energy, anisotropy energy, magnetostatic energy, as well as Zeeman energy. Besi...
متن کاملSemi-implicit integration scheme for Landau–Lifshitz–Gilbert-Slonczewski equation
equation A. Giordano, G. Finocchio, L. Torres, M. Carpentieri, and B. Azzerboni Department of Fisica della Materia e Ingegneria Elettronica, University of Messina, Salita Sperone 31, 98166 Messina, Italy Department of Fı́sica Aplicada, Universidad de Salamanca, Plaza de la Merced, Salamanca 37008, Spain Department of Elettronica, Informatica e Sistemistica, University of Calabria, Via P. Bucci 4...
متن کاملGeneralization of the Landau-Lifshitz-Gilbert equation for conducting ferromagnets.
We propose an extension of the Landau-Lifshitz-Gilbert (LLG) equation by explicitly including the role of conduction electrons in magnetization dynamics of conducting ferromagnets. The temporal and spatial dependent magnetization order parameter m(r,t) generates both electrical and spin currents that provide dissipation of the energy and angular momentum of the processing magnet. The resulting ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 2008
ISSN: 1347-4081,0033-068X
DOI: 10.1143/ptp.120.315