Anisotropic X-ray magnetic circular dichroism spectra of (001) oriented L10-MnGa film

D. Oshima, M. Tanimoto, T. Kato, Y. Fujiwara, T. Nakamura, Y. Kotani, S. Tsunashima, S. Iwata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

L10-MnGa is known to exhibit a large perpendicular anisotropy Ku ∼ 1.5 × 107 erg/cc and a low Gilbert damping constant a ∼ 0.014 [1], which are quite attractive for the applications to future high-density magnetic random access memories and magnetic recording media. Furthermore, magnetic properties of MnGa are modified from ferromagnetic to paramagnetic by a low dose of Kr ion irradiation [2], which is quite useful to develop high-density planer bit patterned media. In spite of the growing concern on the L10-MnGa film, the origin of the large Ku of the MnGa is not clearly understood. In this study, we carried out X-ray magnetic circular dichroism (XMCD) measurements varying the applied field direction, and estimated spin and orbital moments of Mn atoms to discuss the relationship between the large perpendicular anisotropy and electronic structure of the L10-MnGa film.

Original languageEnglish
Title of host publication2015 IEEE International Magnetics Conference, INTERMAG 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479973224
DOIs
Publication statusPublished - 2015 Jul 14
Externally publishedYes
Event2015 IEEE International Magnetics Conference, INTERMAG 2015 - Beijing, China
Duration: 2015 May 112015 May 15

Publication series

Name2015 IEEE International Magnetics Conference, INTERMAG 2015

Other

Other2015 IEEE International Magnetics Conference, INTERMAG 2015
CountryChina
CityBeijing
Period15/5/1115/5/15

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Surfaces, Coatings and Films

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