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Gadolinium-implanted GaN studied by spin-polarized positron annihilation spectroscopy
https://repo.qst.go.jp/records/80342
https://repo.qst.go.jp/records/8034257f60df2-5c53-4696-ae98-a62318e7759d
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-08-20 | |||||
| タイトル | ||||||
| タイトル | Gadolinium-implanted GaN studied by spin-polarized positron annihilation spectroscopy | |||||
| 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 |
Maekawa, Masaki
× Maekawa, Masaki× Miyashita, Atsumi× Sakai, Seiji× Kawasuso, Atsuo× Maekawa, Masaki× Miyashita, Atsumi× Sakai, Seiji× Kawasuso, Atsuo |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In this study, Gd ion implantation and annealing were performed at 900 ◦C for nominally undoped wurtzite GaN grown by metal-organic chemical vapor deposition. Spin-polarized positron annihilation measurements showed that vacancy clusters including at least 12 vacancies per cluster were the major positron-trapping centers and that the electrons in the vacancy clusters were spin-polarized. These observations could be explained by first-principles calculations. The previous speculation about the defect-assisted ferromagnetism of Gd-implanted GaN may be supported if vacancy clusters are considered. | |||||
| 書誌情報 |
PHYSICAL REVIEW B 巻 102, 号 5, p. 054427, 発行日 2020-08 |
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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 | 2469-9950 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1103/PhysRevB.102.054427 | |||||
| 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.102.054427 | |||||
