| Large magnetoresistance in metamagnetic CoMnSi0.88Ge0.12 alloy |
| |
| 作者姓名： | 张成亮 王敦辉 曹庆琪 轩海成 马胜灿 都有为 |
| |
| 作者单位： | National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiangsu Province, Nanjing University, Nanjing 210093, China;National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiangsu Province, Nanjing University, Nanjing 210093, China;National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiangsu Province, Nanjing University, Nanjing 210093, China;National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiangsu Province, Nanjing University, Nanjing 210093, China;National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiangsu Province, Nanjing University, Nanjing 210093, China;National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiangsu Province, Nanjing University, Nanjing 210093, China |
| |
| 基金项目： | Project supported by the State Key
Program for Basic Research of China (Grant No. 2005CB623605), the
National Natural Science Foundation of China (Grant Nos. 50701022
and 50831006) and the Program for New Century Excellent Talents of
China (Grant No. NCET-08-0278). |
| |
| 摘 要： | The magneto-transport properties are investigated in metamagnetic CoMnSi0.88Ge0.12 alloy.By applying a magnetic field or increasing temperature,a metamagnetic phase transition from antiferromagnetic to ferromagnetic is observed in this alloy.Around the metamagnetic phase transition,CoMnSi0.88Ge0.12 alloy exhibits a large and negative magnetoresistance effect(～32%) under a magnetic field of 20 kOe(1 Oe = 79.5775 A/m),which is ascribed to the spin-dependent scattering of conduction electrons.
|
| 关 键 词： | metamagnetic magnetoresistance |
| 收稿时间： | 2009-07-24 |
Large magnetoresistance in metamagnetic CoMnSi0.88Ge0.12 alloy |
| |
| Zhang Cheng-Liang,Wang Dun-Hui,Cao Qing-Qi,Xuan Hai-Cheng,Ma Sheng-Can and Du You-Wei.Large magnetoresistance in metamagnetic CoMnSi0.88Ge0.12 alloy[J].Chinese Physics B,2010,19(3):37501-037501. |
| |
| Authors: | Zhang Cheng-Liang Wang Dun-Hui Cao Qing-Qi Xuan Hai-Cheng Ma Sheng-Can and Du You-Wei |
| |
| Affiliation: | National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiangsu Province, Nanjing University, Nanjing 210093, China |
| |
| Abstract: | The magneto-transport properties are investigated in
metamagnetic CoMnSi0.88Ge0.12 alloy. By applying a
magnetic field or increasing temperature, a metamagnetic phase
transition from antiferromagnetic to ferromagnetic is observed in
this alloy. Around the metamagnetic phase transition,
CoMnSi0.88Ge0.12 alloy exhibits a large and negative
magnetoresistance effect (～ 32%) under a magnetic field of
20~kOe (1~Oe = 79.5775~A/m), which is ascribed to the spin-dependent
scattering of conduction electrons. |
| |
| Keywords: | metamagnetic magnetoresistance |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
|
点击此处可从《中国物理 B》下载免费的PDF全文 |
|
