Anomalous Effects in Minor Hysteresis Loops

K. O'Grady, S. J. Greaves

研究成果: Article査読

8 被引用数 (Scopus)

抄録

We have studied minor hysteresis loops in thin films and measured time dependence at points around the minor loops. We find a linear dependence of the magnetic viscosity S (=dM/dln(t)) with field. We also observe a change in S from negative (decreasing M) to positive (increasing M) values whilst the applied field is still negative. From these results we infer that time dependent changes in the irreversible component of magnetisation, driven by local interaction fields, are at least partially responsible for the minor loop anomaly. In this paper we therefore describe the effect of the nature and scale of the coupling on the anomaly in the minor loops. We find that the minor loop area is enlarged for predominantly dipolar coupled materials.

本文言語English
ページ(範囲)2794-2796
ページ数3
ジャーナルIEEE Transactions on Magnetics
31
6
DOI
出版ステータスPublished - 1995 11
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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