Angular-dependent remanent magnetization curve for perpendicular magnetic recording media determined by precise polar-Kerr detection system

D. Hasegawa, S. Saito, N. Itagaki, S. Meguro, Y. Konishi, E. Yanagisawa, K. Akahane, Migaku Takahashi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We developed the polar-Kerr detection system and evaluated the angular dependence of magnetization curves with applied field of various directions during the newly developed system. The polar-Kerr detection system enabled precise evaluation of angular dependence of remanent coercivity (Hcr), as compared with the conventional VSM system. In addition, a cusp appeared in polar-Kerr hysteresis loop was observed to originate magnetization reversal by the thermal agitation.

Original languageEnglish
Pages (from-to)3027-3031
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume320
Issue number22
DOIs
Publication statusPublished - 2008 Nov 1

Keywords

  • Angular dependence of remanent coercivity
  • Perpendicular recording
  • Polar-Kerr
  • Thermal agitation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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