Magnetization analysis of stepped giant magneto impedance sensor using assembled domain structure model

Issue title: Proceedings from the 17th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2015)

Guest editors: Fumio Kojima, Futoshi Kobayashi and Hiroyuki Nakamoto

Article type: Research Article

Authors: Tejima, Shogo^{a; *} | Ito, Shumpei^a | Mifune, Takeshi^a | Matsuo, Tetsuji^a | Nakai, Tomoo^b

Affiliations: [a] Department of Electrical Engineering, Kyoto University, Kyoto, Japan | [b] Industrial Technology Institute, Miyagi Prefectual Government, Sendai, Japan

Correspondence: [*] Corresponding author: Shogo Tejima, Department of Electrical Engineering, Kyoto University, Kyoto, 615-8165, Japan. E-mail:sho.5552@fem.kuee.kyoto-u.ac.jp

Abstract: The assembled domain structure model (ADSM) is applied to an analysis of thin film magneto impedance (MI) element. The ADSM is a multiscale magnetization model constructed by the assembly of mesoscopic particles called the simplified domain structure models. The ADSM successfully reconstructs the characteristics of the thin film MI element where three stable magnetic domain states coexist. The simulation reveals the influence of longitudinal distribution of magnetic field on the magnetization property that is hardly affected by the perpendicular magnetic field.

Keywords: Magnetic domain, magneto impedance element, multiscale-model

DOI: 10.3233/JAE-162049

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 52, no. 1-2, pp. 541-546, 2016