Positron annihilation study of vacancy-type defects in fast-neutron-irradiated MgO center dot nAl(2)O(3)
文献类型：期刊论文
| 作者 | Rahman, AMS; Li ZX(李卓昕) ; Cao XZ(曹兴忠); Wang BY(王宝义); Wei L(魏龙); Li, ZX; Cao, XZ; Wang, BY; Wei, L; Xu, Q
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| 刊名 | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
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| 出版日期 | 2014 |
| 卷号 | 335页码:70-73 |
| 关键词 | Neutron irradiation Positron lifetime Coincidence Doppler broadening Vacancy MgO center dot nAl(2)O(3) |
| 英文摘要 | The positron lifetimes of fast-neutron-irradiated MgO center dot nAl(2)O(3) single crystals were measured to investigate the formation of cation vacancies. Al monovacancy was possibly observed in samples irradiated by fast neutrons at ultra-low temperatures. Additionally, vacancy-oxygen complex centers were possibly observed in samples irradiated at higher temperatures and fast neutron fluences. Coincidence Doppler broadening (CDB) spectra were measured to obtain information regarding the vicinity of vacancy-type defects. A peak at approximately 11 x 10(-3) m(0)c was observed, which may be due to the presence of oxygen atoms in the neighborhood of the vacancies. (C) 2014 Elsevier B.V. All rights reserved. |
| 学科主题 | Instruments & Instrumentation; Nuclear Science & Technology; Physics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000340984900010 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/225227]  |
| 专题 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Rahman, AMS,Li ZX,Cao XZ,et al. Positron annihilation study of vacancy-type defects in fast-neutron-irradiated MgO center dot nAl(2)O(3)[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2014,335:70-73. |
| APA | Rahman, AMS.,李卓昕.,曹兴忠.,王宝义.,魏龙.,...&Atobe, K.(2014).Positron annihilation study of vacancy-type defects in fast-neutron-irradiated MgO center dot nAl(2)O(3).NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,335,70-73. |
| MLA | Rahman, AMS,et al."Positron annihilation study of vacancy-type defects in fast-neutron-irradiated MgO center dot nAl(2)O(3)".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 335(2014):70-73. |
入库方式： OAI收割
来源：高能物理研究所
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