Electronic structure and magnetic properties of the half-metallic ferrimagnet Mn2VAl probed by soft x-ray spectroscopies

K. Nagai, H. Fujiwara, H. Aratani, S. Fujioka, H. Yomosa, Y. Nakatani, T. Kiss, A. Sekiyama, F. Kuroda, H. Fujii, T. Oguchi, A. Tanaka, J. Miyawaki, Y. Harada, Y. Takeda, Y. Saitoh, S. Suga, and R. Y. Umetsu
Phys. Rev. B 97, 035143 – Published 18 January 2018

Abstract

We have studied the electronic structure of ferrimagnetic Mn2VAl single crystals by means of soft x-ray absorption spectroscopy (XAS), x-ray absorption magnetic circular dichroism (XMCD), and resonant soft x-ray inelastic scattering (RIXS). We have successfully observed the XMCD signals for all the constituent elements. The Mn L2,3 XAS and XMCD spectra are reproduced by spectral simulations based on density-functional theory, indicating the itinerant character of the Mn 3d states. On the other hand, the V 3d electrons are rather localized since the ionic model can qualitatively explain the V L2,3 XAS and XMCD spectra. This picture is consistent with local dd excitations revealed by the V L3 RIXS.

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  • Received 18 June 2017
  • Revised 27 November 2017

DOI:https://doi.org/10.1103/PhysRevB.97.035143

©2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

K. Nagai1, H. Fujiwara1,*, H. Aratani1, S. Fujioka1, H. Yomosa1, Y. Nakatani1, T. Kiss1, A. Sekiyama1, F. Kuroda2,3,4, H. Fujii3,4, T. Oguchi3,4, A. Tanaka2, J. Miyawaki5,6, Y. Harada5,6, Y. Takeda7, Y. Saitoh7, S. Suga4, and R. Y. Umetsu8

  • 1Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
  • 2Department of Quantum Matter, ADSM, Hiroshima University, Higashi-hiroshima, Hiroshima 739-8530, Japan
  • 3CMI2-MaDIS, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
  • 4Institution of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
  • 5Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwanoha, Chiba 277-8581, Japan
  • 6Synchrotron Radiation Research Organization, The University of Tokyo, Sayo-cho, Sayo, Hyogo 679-5198, Japan
  • 7Materials Sciences Research Center, Japan Atomic Energy Agency (JAEA), Sayo, Hyogo 679-5148, Japan
  • 8Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan

  • *fujiwara@mp.es.osaka-u.ac.jp

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Issue

Vol. 97, Iss. 3 — 15 January 2018

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