Atomistic theory of the critical field for intrinsic spin reversal in transition metals

Lei Zhou, Yuichi Hashi, Qiang Sun, Jingzhi Yu, Dingsheng Wang, Yoshiyuki Kawazoe

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A method to estimate the critical field for intrinsic spin reversal in transition metals is proposed within the framework of itinerant-electron magnetism. By studying the transverse magnetic susceptibility under a Hartree-Fock approximation, the dispersion relations of the spin wave excitations are obtained, which possess a positive gap induced by the anisotropically coupled spin-orbit interaction when the magnetization is along the easy axis. When a magnetic field applied opposite to the magnetization is strong enough to overcome the excitation gap, a spin reversal transition takes place which defines the critical field. To illustrate the present method, transition-metal magnetic monolayers and microclusters have been examined. Comparisons show that the method can be applied to capture effects missed in the classical Stoner treatment.

Original languageEnglish
Pages (from-to)1028-1035
Number of pages8
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume59
Issue number2
DOIs
Publication statusPublished - 1999

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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