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Semiconducting electronic structure of the ferromagnetic spinel HgCr2Se4 revealed by soft-x-ray angle-resolved photoemission spectroscopy
https://repo.qst.go.jp/records/2000320
https://repo.qst.go.jp/records/200032069efa852-d7da-4d5f-a881-848488ff991c
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||
|---|---|---|---|---|---|---|---|---|
| 公開日 | 2024-07-26 | |||||||
| タイトル | ||||||||
| タイトル | Semiconducting electronic structure of the ferromagnetic spinel HgCr2Se4 revealed by soft-x-ray angle-resolved photoemission spectroscopy | |||||||
| 言語 | en | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
| 資源タイプ | journal article | |||||||
| 著者 |
Akashi Ryosuke
× Akashi Ryosuke
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | We study the electronic structure of the ferromagnetic spinel HgCr2Se4 by soft-x-ray angle-resolved photoemission spectroscopy (SX-ARPES) and first-principles calculations. While a theoretical study has predicted that this material is a magnetic Weyl semimetal, SX-ARPES measurements give direct evidence for a semiconducting state in the ferromagnetic phase. Band calculations based on the density functional theory with hybrid functionals reproduce the experimentally determined band gap value, and the calculated band dispersion matches well with ARPES experiments. We conclude that the theoretical prediction of a Weyl semimetal state in HgCr2Se4 underestimates the band gap, and this material is a ferromagnetic semiconductor. | |||||||
| 書誌情報 |
Physical Review Letters 巻 130, 号 18, p. 186402, 発行日 2023-05 |
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| 出版者 | ||||||||
| 出版者 | American Physical Society | |||||||
| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 0031-9007 | |||||||
| DOI | ||||||||
| 識別子タイプ | DOI | |||||||
| 関連識別子 | 10.1103/PhysRevLett.130.186402 | |||||||
