Correlation effects in the stochastic Landau-Lifshitz-Gilbert equation

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

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 کامل

Ginzburg-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 کامل

An 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 کامل

Generalization 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 کامل

A general integrator for the Landau-Lifshitz-Gilbert equation

In our contribution, we extend a P1 finite element scheme for the discretization of the Landau-LifshitzGilbert equation (LLG), which has originally been proposed by Alouges [1] for a simpler model problem. Unlike prior works [2], [5], we allow arbitrary contributions to the effective field and elaborate the circumstances under which weak subconvergence towards a weak solution can mathematically...

متن کامل

ذخیره 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: Physical Review B

سال: 2010

ISSN: 1098-0121,1550-235X

DOI: 10.1103/physrevb.81.104413