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Effects of conduction electron excitation on x-ray magnetic circularly polarized emission in itinerant ferromagnets
https://repo.qst.go.jp/records/81524
https://repo.qst.go.jp/records/81524ed0b1f77-9dc0-4d7f-bf0e-bbafba22f755
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-01-05 | |||||
| タイトル | ||||||
| タイトル | Effects of conduction electron excitation on x-ray magnetic circularly polarized emission in itinerant ferromagnets | |||||
| 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 | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Koide, Akihiro
× Koide, Akihiro× Nomura, Takuji× Inami, Toshiya× Akihiro, Koide× Takuji, Nomura× Toshiya, Inami |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We develop a theoretical method to calculate x-ray magnetic circularly polarized emission (XMCPE) spectra for itinerant ferromagnets, in particular, Kα emission for transition metals. The effects of electron excitations in the d bands are treated by means of the Keldysh Green's function. In our theoretical framework, the ferromagnetic ground state and the excitations are described by a mean-field approximation and a single-bubble diagram, respectively. We apply our method to Kα XMCPE spectra of metallic iron, and reproduce the observed tail structures on the low-energy side of each peak. Contributions from the excitations in the d bands depend strongly on the exchange interaction as well as the direct interaction between the 2p and 3d electrons. The dependence of the spectral intensity on emission angles with respect to the magnetization direction is cosinusoidal, indicating that Kα XMCPE can be used to investigate the magnetization directions in bulk ferromagnets. | |||||
| 書誌情報 |
PHYSICAL REVIEW B 巻 102, 号 22, p. 224425-1-224425-14, 発行日 2020-12 |
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| 出版者 | ||||||
| 出版者 | APS | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2469-9950 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1103/PhysRevB.102.224425 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.102.224425 | |||||
