Landau-Lifshitz-Bloch equation for ferrimagnetic materials
نویسندگان
چکیده
منابع مشابه
Stochastic form of the Landau-Lifshitz-Bloch equation
R. F. L. Evans,1 D. Hinzke,2 U. Atxitia,3 U. Nowak,2 R. W. Chantrell,1 and O. Chubykalo-Fesenko3 1Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom 2Universität Konstanz, Fachbereich Physik, Universitatssträße 10, D-78464 Konstanz, Germany 3Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, E-28049 Madrid, Spain (Received 20 October 2011; publish...
متن کاملIsotropic Landau-Lifshitz Equation
By using the geometric concept of PDEs with prescribed curvature representation, we prove that the 1+2 dimensional isotropic Landau-Lifshitz equation is gauge equivalent to a 1+2 dimensional nonlinear Schrödinger-type system. From the nonlinear Schrödinger-type system, we construct blowing up H3(R2)-solutions to the Landau-Lifshitz equation, which reveals the blow up phenomenon of the equation.
متن کاملNumerical Methods for the Landau-Lifshitz Equation
We discuss numerical schemes for various forms of the Landau–Lifshitz equation. A new simple projection method is introduced and is shown to be unconditionally stable. The advantages over other schemes are also demonstrated numerically.
متن کاملTemperature-dependent ferromagnetic resonance via the Landau-Lifshitz-Bloch equation : Application to FePt
Using the Landau-Lifshitz-Bloch (LLB) equation for ferromagnetic materials, we derive analytic expressions for temperature-dependent absorption spectra as probed by ferromagnetic resonance. By analyzing the resulting expressions, we can predict the variation of the resonance frequency and damping with temperature and coupling to the thermal bath. We base our calculations on the technologically ...
متن کاملMicromagnetic modeling of laser-induced magnetization dynamics using the Landau-Lifshitz-Bloch equation
We present a dynamic approach to micromagnetics based on the Landau-Lifshitz-Bloch equation and Langevin dynamics. This type of modeling will be necessary at high temperatures when the magnetization length is not conserved, especially close to the Curie temperature. We model the laser-induced magnetization dynamics with various laser pulse fluences and show that the results are consistent with ...
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: Physical Review B
سال: 2012
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.86.104414