Off-axis electron holography and microstructure of Ba0.5Sr0.5TiO3 thin films on LaAlO3
文献类型：期刊论文
| 作者 | Tian, HF ; Yu, HC ; Zhu, XH ; Wang, YG ; Zheng, DN ; Yang, HX ; Li, JQ |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2005 |
| 卷号 | 71期号:11 |
| 关键词 | FERROELECTRIC DOMAIN-WALLS |
| ISSN号 | 1098-0121 |
| 通讯作者 | Li, JQ (reprint author), Chinese Acad Sci, Inst Phys, Beijing Lab Electron Microscopy, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | We use interfacial transport and transmission electron microscopy to study the YBa2Cu3O7-delta(YBCO)/La0.67Ca0.33MnO3(LCMO) junction that form a d(x)2(-y)2-wave superconductor and a ferromagnet (FM) heterostructure. Zero bias conductance peaks (ZBCPs) caused by Andreev reflection at zero bias were observed in the interfacial differential conductance spectra for the sample with an orderly mixed c- and a-axis [with (001) and (100)/(110)] orientation of YBCO in the interface. When the YBCO film is oriented with the c-axis normal to the interface, a zero bias conductance dip (ZBCD) is observed. These results evidence the existence of surface Andreev bound states (midgap states) in the {110} surface of YBCO, which can lead ZBCP to appear in all directions except the {100} surface of YBCO where ZBCD occurs. Furthermore, the absence of any obvious influence of spin-polarization of LCMO on ZBCP in zero magnetic field implies that the LCMO is not half-metallic in the interface of YBCO/LCMO, while strong magnetic field dependence of ZBCP shows that the applied magnetic field enhances the spin polarization of LCMO and suppresses ZBCPs in YBCO. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/50202]  |
| 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 | Tian, HF,Yu, HC,Zhu, XH,et al. Off-axis electron holography and microstructure of Ba0.5Sr0.5TiO3 thin films on LaAlO3[J]. PHYSICAL REVIEW B,2005,71(11). |
| APA | Tian, HF.,Yu, HC.,Zhu, XH.,Wang, YG.,Zheng, DN.,...&Li, JQ.(2005).Off-axis electron holography and microstructure of Ba0.5Sr0.5TiO3 thin films on LaAlO3.PHYSICAL REVIEW B,71(11). |
| MLA | Tian, HF,et al."Off-axis electron holography and microstructure of Ba0.5Sr0.5TiO3 thin films on LaAlO3".PHYSICAL REVIEW B 71.11(2005). |
入库方式： OAI收割
来源：物理研究所
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