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Spin-Polarized Positron Annihilation Measurement on Ga Vacancies in p-type GaN
https://repo.qst.go.jp/records/49428
https://repo.qst.go.jp/records/49428ea8c86a2-286e-44bb-a840-3603f1aa1dd7
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-08-29 | |||||
タイトル | ||||||
タイトル | Spin-Polarized Positron Annihilation Measurement on Ga Vacancies in p-type GaN | |||||
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 |
前川, 雅樹
× 前川, 雅樹× 境, 誠司× 宮下, 敦巳× 河裾, 厚男× Maekawa, Masaki× Sakai, Seiji× Miyashita, Atsumi× Kawasuso, Atsuo |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Nitrogen-implanted p-type GaN films have been investigated through the Doppler broadening of annihilation radiation (DBAR) measurements with spin-polarized positrons and magnetization (M-H) measurements. The DBAR spectra showed asymmetry upon magnetic-field reversal at 300 K, while no asymmetry appeared at 30 K. This result indicates that excess electron spins at Ga vacancies are aligned under the application of magnetic field at 300 K, but such spin ordering vanishes at low temperatures. No hysteresis was found in M{H curves both at 10 K and 300 K. This means that no macroscopic magnetism appears even though excess electron spins at Ga vacancies are introduced. | |||||
書誌情報 |
e-Journal of Surface Science and Nanotechnology 巻 16, p. 347-350, 発行日 2018-07 |
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出版者 | ||||||
出版者 | 公益社団法人 日本表面真空学会 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1348-0391 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1380/ejssnt.2018.347 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.jstage.jst.go.jp/article/ejssnt/16/0/16_347/_article |