Positron annihilation in the epitaxial superconducting thin-film GdBa2Cu3O7-delta studied by using a pulsed positron beam
文献类型：期刊论文
| 作者 | Zhou, XY ; Stormer, J ; Wang, RL ; Keimel, J ; Li, HC ; Kogel, G ; Triftshauser, W |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 1996 |
| 卷号 | 54期号:2页码:1398 |
| 关键词 | BA-CU-O OXIDE SUPERCONDUCTORS LIFETIME SPECTROSCOPY PULSING SYSTEM TEMPERATURE YBA2CU3O7-X DEFECTS DISLOCATIONS SENSITIVITY DEPENDENCE |
| ISSN号 | 0163-1829 |
| 通讯作者 | Zhou, XY (reprint author), UNIV MUNICH,INST NUKL FESTKORPERPHYS,D-85577 MUNICH,GERMANY. |
| 中文摘要 | The positron lifetime as a function of implantation energy was measured on the epitaxial superconducting thin film GdBa2Cu3O7-delta at different temperatures. The coexistence of both shallow and deep positron trapping centers was observed in the film. The shallow trapping centers include the screw dislocations and twin boundaries. The binding energy of the shallow trapping centers was estimated to be 56 +/- 12 meV. The deep trapping centers are assigned the cation vacancies, especially barium vacancies. On the surface of the sample there are macroscopic free volume holes in which positronium could be formed. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51166]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhou, XY,Stormer, J,Wang, RL,et al. Positron annihilation in the epitaxial superconducting thin-film GdBa2Cu3O7-delta studied by using a pulsed positron beam[J]. PHYSICAL REVIEW B,1996,54(2):1398. |
| APA | Zhou, XY.,Stormer, J.,Wang, RL.,Keimel, J.,Li, HC.,...&Triftshauser, W.(1996).Positron annihilation in the epitaxial superconducting thin-film GdBa2Cu3O7-delta studied by using a pulsed positron beam.PHYSICAL REVIEW B,54(2),1398. |
| MLA | Zhou, XY,et al."Positron annihilation in the epitaxial superconducting thin-film GdBa2Cu3O7-delta studied by using a pulsed positron beam".PHYSICAL REVIEW B 54.2(1996):1398. |
入库方式： OAI收割
来源：物理研究所
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