首页 | 本学科首页   官方微博 | 高级检索  
     


Homogenization of random anisotropy properties in polycrystalline magnetic materials
Authors:Oriano Bottauscio  Valeria Chiadò Piat  Michela Eleuteri  Luca Lussardi  Alessandra Manzin
Affiliation:1. Istituto Nazionale di Ricerca Metrologica, strada delle Cacce 91, I-10135 Torino, Italy;2. Politecnico di Torino, c.so Duca degli Abruzzi 24, I-10129 Torino, Italy;3. On leave from: Dip. di Matematica, via Sommarive 14, I-38123 Povo (Trento), Italy;4. Technische Universität Dortmund, Vogelpothsweg 87, D-44227 Dortmund, Germany;1. Laboratory of Acoustoelectronics, Georgi Nadjakov Institute of Solid State Physics (ISSP), Bulgarian Academy of Sciences (BAS), Bulgaria;2. Department of Electrical and Computer Engineering, Boise State University, Boise, ID 83725-2075, USA;3. Department of Physics, Boise state University, Boise, ID 83725-1570, USA;1. Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, 565-0871 Japan;2. Department of Mechanical Engineering, Toyama National College of Technology, 13 Hongo-machi, Toyama, 939-8630 Japan;1. Department of Physics, Beijing Normal University, Beijing 100875, China;2. School of Police Information Engineering, People''s Public Security University of China, Beijing 100038, China;3. Analytic and Testing Center, Beijing Normal University, Beijing 100875, China;1. Laboratoire CEMCA, CNRS UMR 6521, IFR 148 ScInBIoS, Faculté des sciences, Université de Bretagne Occidentale, 6 Avenue Le Gorgeu, 29238 Brest Cedex, France;2. INSERM U613, IFR 148 ScInBIoS, Faculté de médecine, Université de Bretagne Occidentale, Avenue Camille Desmoulins, 46 rue Félix Le Dantec, CS 51819, 29218 Brest Cedex 2, France
Abstract:This paper is devoted to the determination of the equivalent anisotropy properties of polycrystalline magnetic materials, modelled by an assembly of monocrystalline grains with a stochastic spatial distribution of easy axes. The mathematical theory of Γ-convergence is applied to homogenize the anisotropic term in the Gibbs free energy. The procedure is validated focusing on the micromagnetic computation of reversal processes in polycrystalline magnetic thin films.
Keywords:
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号