Distorted and undistorted atomic sites in a ferromagnetic semiconductor Ge0.6Mn0.4Te film determined by X-ray fluorescence holography

Naohisa Happo, Koichi Hayashi, Shinya Senba, Hitoshi Sato, Motohiro Suzuki, Shinya Hosokawa

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8 Citations (Scopus)

Abstract

Local atomic structures around Ge and Mn atoms in a ferromagnetic semiconductor Ge0.6Mn0.4Te thin film were investigated by performing Ge and Mn Kα X-ray fluorescence holographic experiments. The obtained three-dimensional atomic images revealed that the local structure around Mn formed a rock salt lattice, whereas the lattice around Ge was strongly distorted, which is reflected by a rhombohedral structure of GeTe. The undistorted rock salt environment around the Mn atoms is considered to be a key factor allowing for this alloy to exhibit high-temperature ferromagnetism.

Original languageEnglish
Article number113601
Journaljournal of the physical society of japan
Volume83
Issue number11
DOIs
Publication statusPublished - 2014 Nov 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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