TY - JOUR
T1 - X-ray magnetic circular dichroism and hard X-ray photoelectron spectroscopy of tetragonal Mn72Ge28 epitaxial thin film
AU - Kim, Jinhyeok
AU - Mizuguchi, Masaki
AU - Inami, Nobuhito
AU - Ueno, Tetsuro
AU - Ueda, Shigenori
AU - Takanashi, Koki
N1 - Funding Information:
The authors are grateful to Dr. K. Ono of High Energy Accelerator Research Organization for his help with XMCD measurements, Dr. H. Yoshikawa and Dr. A. Tsukamoto of Nihon University for their help with SQUID-VSM measurements, Dr. M. Tsujikawa and Dr. M. Shirai of Tohoku University for fruitful discussions. This research was partly supported by a Grant-in-Aid for Scientific Research (S) (25220910) from the Japan Society for the Promotion of Science and CREST (Grant No. JPMJCR1524) from the Japan Science and Technology Agency. The XMCD measurements were performed at BL16A at KEK-PF (Proposal No. 2015MP04). The HAXPES measurements were performed at BL15XU at SPring-8 with the approval of JASRI (Proposal Nos. 2014B4905, 2015A4908, 2015B4909, 2016A4907, 2016B4909, and 2017A4909).
Publisher Copyright:
© 2018 The Japan Society of Applied Physics.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2018/4
Y1 - 2018/4
N2 - 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.
AB - 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.
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U2 - 10.7567/JJAP.57.04FN10
DO - 10.7567/JJAP.57.04FN10
M3 - Article
AN - SCOPUS:85044460548
VL - 57
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 4
M1 - 04FN10
ER -