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Itinerant ferromagnetism mediated by giant spin polarization of the metallic ligand band in the van der Waals magnet Fe5 Ge Te2
https://oist.repo.nii.ac.jp/records/2080
https://oist.repo.nii.ac.jp/records/20808c569aaf-d437-4a40-b94f-31e0ce7ff94c
名前 / ファイル | ライセンス | アクション |
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Yamagami-2021-Itinerant ferromagnetism mediate (795.7 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-05-17 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Itinerant ferromagnetism mediated by giant spin polarization of the metallic ligand band in the van der Waals magnet Fe5 Ge Te2 | |||||
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(英) |
Yamagami, K.
× Yamagami, K.× Fujisawa, Y.× Driesen, B.× Hsu, C. H.× Kawaguchi, K.× Tanaka, H.× Kondo, T.× Zhang, Y.× Wadati, H.× Araki, K.× Takeda, T.× Takeda, Y.× Muro, T.× Chuang, F. C.× Niimi, Y.× Kuroda, K.× Kobayashi, M.× Okada, Y. |
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書誌情報 |
en : Physical Review B 巻 103, 号 6, p. L060403, 発行日 2021-02-12 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | We investigate near-Fermi-energy (EF) element-specific electronic and spin states of ferromagnetic van der Waals (vdW) metal Fe5 Ge Te2. The soft x-ray angle-resolved photoemission spectroscopy (SX-ARPES) measurement provides spectroscopic evidence of localized Fe 3d band. We also find prominent hybridization between the localized Fe 3d band and the delocalized Ge/Te p bands. This picture is strongly supported from direct observation of the remarkable spin polarization of the ligand p bands near EF, using x-ray magnetic circular dichroism (XMCD) measurements. The strength of XMCD signal from ligand element Te shows the highest value, as far as we recognize, among literature reporting finite XMCD signal for nonmagnetic element in any systems. Combining SX-ARPES and elemental selective XMCD measurements, we collectively point to an important role of giant spin polarization of the delocalized ligand Te states for realizing itinerant long-range ferromagnetism in Fe5 Ge Te2. Our finding provides a fundamental elemental selective viewpoint for understanding mechanism of itinerant ferromagnetism in low-dimensional compounds, which also leads to insight for designing exotic magnetic states by interfacial band engineering in heterostructures. | |||||
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 | 2469-9950 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2469-9969 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1103/PhysRevB.103.L060403 | |||||
権利 | ||||||
権利情報 | © 2021 American Physical Society | |||||
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識別子タイプ | URI | |||||
関連識別子 | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.103.L060403 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |