High sensitivity of positive magnetoresistance in low magnetic field in perovskite oxide p-n junctions
文献类型：期刊论文
| 作者 | Lu, HB ; Dai, SY ; Chen, ZH ; Zhou, YL ; Cheng, BL ; Jin, KJ ; Liu, LF ; Yang, GZ ; Ma, XL |
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2005 |
| 卷号 | 86期号:3 |
| 关键词 | MOLECULAR-BEAM EPITAXY COLOSSAL MAGNETORESISTANCE TRILAYER JUNCTIONS TUNNEL-JUNCTIONS HETEROSTRUCTURE TEMPERATURE MANGANITES ELECTRON SRTIO3 |
| ISSN号 | 0003-6951 |
| 通讯作者 | Lu, HB: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China. |
| 中文摘要 | Large positive magnetoresistance (MR) and high MR sensitivity in low magnetic fields have been discovered in the Sr-doped LaMnO3 and Nb-doped SrTiO3 p-n junctions fabricated by laser molecular-beam epitaxy. The MR ratios, defined as DeltaR/R-0, DeltaR = R-H-R-0, are observed as large as 11 % in 5 Oe, 23 % in 100 Oe, and 26 % in 1000 Oe at 290 K; 53% in 5 Oe, 80 % in 100 Oe, and 94 % in 1000 Oe at 255 K. The MR sensitivities are 85 Omega/Oe at 290 K, 246 Omega/Oe at 255 K, and 136 Omega/Oe at 190 K, respectively, with the applied magnetic field changed from 0 to 5 Oe. The positive MR ratios and high MR sensitivities of the p-n junctions are very different from that of the LaMnO3 compound family. (C) 2005 American Institute of Physics. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/39248]  |
| 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 | Lu, HB,Dai, SY,Chen, ZH,et al. High sensitivity of positive magnetoresistance in low magnetic field in perovskite oxide p-n junctions[J]. APPLIED PHYSICS LETTERS,2005,86(3). |
| APA | Lu, HB.,Dai, SY.,Chen, ZH.,Zhou, YL.,Cheng, BL.,...&Ma, XL.(2005).High sensitivity of positive magnetoresistance in low magnetic field in perovskite oxide p-n junctions.APPLIED PHYSICS LETTERS,86(3). |
| MLA | Lu, HB,et al."High sensitivity of positive magnetoresistance in low magnetic field in perovskite oxide p-n junctions".APPLIED PHYSICS LETTERS 86.3(2005). |
入库方式： OAI收割
来源：物理研究所
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