Bose-Einstein condensates with spatially inhomogeneous interaction and bright solitons
文献类型：期刊论文
| 作者 | Shin, HJ ; Radha, R ; Kumar, VR |
| 刊名 | PHYSICS LETTERS A
 |
| 出版日期 | 2011 |
| 卷号 | 375期号:25页码:2519 |
| 关键词 | POSITION-DEPENDENT MASS SCHRODINGER-EQUATION FESHBACH RESONANCES SCATTERING GAS EXCITONS FIELDS ATOMS RB-85 |
| ISSN号 | 0375-9601 |
| 通讯作者 | Radha, R: Govt Coll Women Autonomous, Dept Phys, Ctr Nonlinear Sci, Kumbakonam 612001, India. |
| 中文摘要 | The magnetoresistance (MR){=[R(H) - R(0)]/R(0)} properties in ferromagnetic shape memory alloy of NiMnFeGa ribbons and single crystals, and NiFeGa ribbons have been investigated. It is found that the NiMnFeGa melt-spun ribbon exhibited GMR effect, arising from the spin-dependent scattering from magnetic inhomogeneities consisting of antiferromagnetically coupled Mn atoms in B2 structure. In the absence of these magnetic inhomogeneities, Heusler alloys seem to show a common linear MR behavior at around 0.8T(C), regardless of sample structures. This may be explained by the s-d model. At low temperatures, conventional AMR behaviors due to the spin-orbital coupling are observed. This is most likely due to the diminished MR from s-d model because of much less spin fluctuation, and is not associated with martensite phase. MR anomaly at intermediate field (rho(perpendicular to) > rho(parallel to)) is also observed in single crystal samples, which may be related to unique features of Heusler alloys. (C) 2011 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 资助信息 | Department of Science and Technology, Government of India; Institute of Physics, Chinese Academy of Sciences [2010008]; DST; DAE-NBHM |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/34306]  |
| 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 | Shin, HJ,Radha, R,Kumar, VR. Bose-Einstein condensates with spatially inhomogeneous interaction and bright solitons[J]. PHYSICS LETTERS A,2011,375(25):2519. |
| APA | Shin, HJ,Radha, R,&Kumar, VR.(2011).Bose-Einstein condensates with spatially inhomogeneous interaction and bright solitons.PHYSICS LETTERS A,375(25),2519. |
| MLA | Shin, HJ,et al."Bose-Einstein condensates with spatially inhomogeneous interaction and bright solitons".PHYSICS LETTERS A 375.25(2011):2519. |
入库方式： OAI收割
来源：物理研究所
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