Comparison of the Fast Multipole and Ewald methods for the evaluation of the magnetodipolar field in disordered systems

被引：3

作者：

Gorn, N. L. ^{[1
]}

Berkov, D. V. ^{[1
]}

Goernert, P. ^{[1
]}

Stock, D. ^{[1
]}

机构：

[1] Innovent Technol Dept, D-7745 Jena, Germany

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 310卷 / 02期

关键词：

fast multipole method; Ewald method; dipolar systems;

D O I：

10.1016/j.jmmm.2006.10.1063

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this contribution, we present the comparative analysis of the simple Ewald, lattice-based Ewald and Fast Multipole (FMM) methods for the evaluation of the long-range dipolar. eld in disordered systems. We show that the FMM method with the optimally chosen hierarchical structure and the improved lattice version of the Ewald algorithm are superior with respect to original Ewald method starting from the particle number N similar to 10(4). FMM and lattice Ewald versions demonstrate comparable performance for systems up to N similar to 4x10(4) particles. (C) 2006 Elsevier B. V. All rights reserved.

引用

页码：2829 / 2831

页数：3

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