Magnetocrystalline anisotropy energy in L10-type CoPt single crystals

H. Shima, K. Oikawa, A. Fujita, K. Fukamichi, K. Ishida, S. Nakamura, T. Nojima

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

L10-type Co100-xPtx single crystals were prepared by atomic ordering under compressive stress and the magnetic properties were investigated. The second order magnetocrystalline anisotropy constant K1 at 298 K exhibits a maximum value of 4.1×107 erg cm-3 at x=50. On the other hand, the fourth order magnetocrystalline anisotropy constant K2 becomes minimum at the same composition. The large uniaxial magnetocrystalline anisotropy constant KU with a low saturation magnetization M S in L10-type Co100-xPtx would bring about the thermal stability of the single magnetic domain state, as well as the sharp coherent magnetization reversal.

Original languageEnglish
Pages (from-to)566-569
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Volume290-291 PART 1
DOIs
Publication statusPublished - 2005 Apr

Keywords

  • Anisotropy-magnetocrystalline
  • Anisotropy-uniaxial
  • Ordered alloy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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