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Determination of specific ion positions of Cr3+ and O2− in Cr2O3 thin films and their relationship to exchange anisotropy at Co/Cr2O3 interfaces
https://repo.qst.go.jp/records/48689
https://repo.qst.go.jp/records/48689ac9c5b2e-ec7d-441a-b445-d5dd501b4d15
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-04-12 | |||||
| タイトル | ||||||
| タイトル | Determination of specific ion positions of Cr3+ and O2− in Cr2O3 thin films and their relationship to exchange anisotropy at Co/Cr2O3 interfaces | |||||
| 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 |
Shiratsuchi, Yu
× Shiratsuchi, Yu× Nakano, Yuuta× Inami, Nobuhito× Ueno, Tetsuro× Ono, Kanta× Kumai, Reiji× Sagayama, Ryoko× Nakatani, Ryoichi× 上野 哲朗 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The structures of antiferromagnetic Cr2O3(0001) thin films with perpendicular exchange bias were investigated using reflection high-energy electron diffraction, X-ray reflectivity, and synchrotron X-ray diffraction. We mainly investigated the specific ion positions of Cr3+ and O2− in the corundum structure and discussed their relationship to the magnetic anisotropy of Cr2O3. The Cr2O3(0001) thin film grown on a Pt(111) buffer layer exhibited a perpendicular exchange anisotropy density of 0.42 mJ/m2, in which the Cr3+ position is the primary factor in the enhancement of magnetic anisotropy due to dipolar-interaction. In contrast, the single-crystalline Cr2O3(0001) film grown on a α-Al2O3(0001) substrate featured a low exchange magnetic anisotropy of 0.098 mJ/m2. In this film, the Cr3+ position parameter is an insignificant factor, leading to low magnetic anisotropy. The O2− ion position also differs between the two types of films, which can affect both the magnetic anisotropy energy originating from fine structures and the magneto-electric properties of Cr2O3. | |||||
| 書誌情報 |
Journal of Applied Physics 巻 123, p. 103903-1-103903-7, 発行日 2018-03 |
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| 出版者 | ||||||
| 出版者 | AIP Publishing | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1063/1.5020620 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1063/1.5020620 | |||||
| 関連名称 | https://doi.org/10.1063/1.5020620 | |||||
