Temperature Dependence of Magnetocrystalline Anisotropy in Itinerant Ferromagnets

Daisuke Miura, Akimasa Sakuma

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We theoretically investigated magnetocrystalline anisotropy (MA) at a finite temperature T in ferromagnetic metals. Assuming a Rashba-type ferromagnet with uniaxial MA, we defined the MA constants Ku(T) derived from several different concepts. Our purpose was to examine the equality between them and to confirm a power law between Ku(T) and magnetization M(T) in the form of Ku(T)=Ku(0) = [M(T)=M(0)]α. We demonstrate that α equals 2 in the itinerantelectron limit and increases with the localized feature of electrons passing through α = 3, predicted for the single-ion MA in spin models.

Original languageEnglish
Article number023706
Journaljournal of the physical society of japan
Issue number2
Publication statusPublished - 2022 Feb 15
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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