In-beam Mössbauer spectra of 57Mn implanted into lithium aluminum hydride

Yukiko Sato; Yasuhiro Yamada; Yoshio Kobayashi; M Kenya Kubo; Mototsugu Mihara; Wataru Sato; Jun Miyazaki; Takashi Nagatomo; Takatoshi Ando; Noriko Takahama; Kanako Some; Masami Sato; Shinji Sato; Atsushi Kitagawa

doi:10.1016/j.apradiso.2020.109582

In-beam Mössbauer spectra of ⁵⁷Mn implanted into lithium aluminum hydride

Appl Radiat Isot. 2021 Apr:170:109582. doi: 10.1016/j.apradiso.2020.109582. Epub 2021 Jan 20.

Authors

Affiliations

¹ Department of Chemistry, Tokyo University of Science, Shinjuku, Tokyo, Japan.
² Graduate School of Engineering Science, University of Electro-Communications, Chofu, Tokyo, Japan; Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, Japan. Electronic address: yoshio.kobayashi@uec.ac.jp.
³ College of Liberal Arts, International Christian University, Mitaka, Tokyo, Japan.
⁴ Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan.
⁵ Institute of Science and Engineering, Kanazawa University, Kanazawa, Ishikawa, Japan.
⁶ School of Engineering, Tokyo Denki University, Adachi, Tokyo, Japan.
⁷ Graduate School of Engineering Science, University of Electro-Communications, Chofu, Tokyo, Japan.
⁸ National Institute of Radiological Sciences, Inage, Chiba, Japan.

PMID: 33561749
DOI: 10.1016/j.apradiso.2020.109582

Abstract

In-beam Mössbauer spectra of ⁵⁷Mn implanted into LiAlH₄ were measured at different temperatures between 17 and 300 K. The Mössbauer spectrum measured at 17 K showed two sets of doublets, which were assigned to ⁵⁷Fe atoms at substitutional sites at Al³⁺ and Li⁺ sites. The Debye temperatures θ_M for the ⁵⁷Fe atoms at Al³⁺-substituted and Li⁺-substituted sites were estimated to be 194 K and 117 K, respectively. The assignments were confirmed by density functional theory calculations.

Keywords: Density functional theory calculations; In-beam Mössbauer spectroscopy; Iron hydride; Lithium aluminum hydride; Manganese-57.