X-ray magnetic circular dichroism and hard X-ray photoelectron spectroscopy of tetragonal Mn72Ge28 epitaxial thin film

Jinhyeok Kim, Masaki Mizuguchi, Nobuhito Inami, Tetsuro Ueno, Shigenori Ueda, Koki Takanashi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

An epitaxially grown Mn72Ge28 film with a tetragonal crystal structure was fabricated. It was clarified that the film had a perpendicular magnetization and a high perpendicular magnetic anisotropy energy of 14.3 Merg/cm3. The electronic structure was investigated by X-ray magnetic circular dichroism and hard X-ray photoelectron spectroscopy. The obtained X-ray magnetic circular dichroism spectrum revealed that the Mn orbital magnetic moment governed the magnetocrystalline anisotropy of the Mn72Ge28 film. A doublet structure was observed for the Mn 2p3/2 peak of hard X-ray photoelectron spectrum, indicating the spin exchange interaction between the 2p core-hole and 3d valence electrons.

Original languageEnglish
Article number04FN10
JournalJapanese journal of applied physics
Volume57
Issue number4
DOIs
Publication statusPublished - 2018 Apr

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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