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TRANSVERSE SUSCEPTIBILITY OF SINGLE-DOMAIN PARTICLE SYSTEMS

A. Stancu1,* , L. Spinu2

Affiliation

  1. Faculty of Physics, “Al. I. Cuza” University, Ia i, 6600, România
  2. AMRI & Physics Dept., University of New Orleans, LA 70148, USA

Abstract

Simulations of the Transverse Susceptibility (TS) signal for single-domain and for systems of ferromagnetic particles are presented. When calculating the TS for single domains, details are provided concerning the uniaxial and cubic anisotropies. For the uniaxial single-domain particles a 2D critical approach can be used. The TS for cubic anisotropy is essentially a 3D problem that was solved with a micromagnetic Landau-Lifsith-Gilbert algorithm. Since the TS experimental method is extensively used in the laboratories for the anisotropy evaluation, the importance of this study consists in the fact that it offers a tool for understanding the problems and errors in the correct interpretation of the TS curves..

Keywords

Magnetic anisotropy, Single-domain particle, Transverse susceptibility.

Submitted at: July 22, 2002
Accepted at: March 12, 2003

Citation

A. Stancu, L. Spinu, TRANSVERSE SUSCEPTIBILITY OF SINGLE-DOMAIN PARTICLE SYSTEMS, Journal of Optoelectronics and Advanced Materials Vol. 5, Iss. 1, pp. 195-205 (2003)