First principles calculation of magnetocrystalline anisotropy energy of mnbi and MnBi1-xSnx

Akimasa Sakuma, Yuki Manabe, Yohei Kota

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

We calculated the magnetic anisotropy constant Ku of MnBi using a first principles approach, and obtained a negative Ku in agreeable with experimental results. Furthermore, we also found a band filling dependence indicating that a slight decrease in the valence electron number will change Ku from negative to positive. When some of the Bi is replaced with Sn to decrease the valence electron number, the Ku value of MnBi 1-xSnx drastically changes to a positive value, Ku ̃ 2 MJ/m3, for x > 0.05.

Original languageEnglish
Article number073704
Journaljournal of the physical society of japan
Volume82
Issue number7
DOIs
Publication statusPublished - 2013 Jul 1

Keywords

  • CPA
  • First principles calculation
  • LMTO
  • Magnetocrystalline anisotropy energy
  • MnBi
  • Permanent magnets

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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