Magnetic, electronic transport and magneto-transport behaviours of (Co1-xMnx)(2)P compounds
文献类型：期刊论文
| 作者 | N. K. Sun ; Y. Q. Zhang ; Y. B. Li ; D. Li ; W. F. Li ; W. Liu ; X. G. Zhao ; Z. D. Zhang |
| 刊名 | Journal of Physics D-Applied Physics
 |
| 出版日期 | 2006 |
| 卷号 | 39期号:20页码:4304-4310 |
| 关键词 | metamagnetic-transition solid solutions resistivity systems magnetoresistance anomalies alloys field |
| ISSN号 | 0022-3727 |
| 中文摘要 | Magnetic, electronic transport and magneto-transport behaviours of (Co1-xMnx)(2)P (0.55 <= x <= 0.675) compounds have been systematically investigated. A typical metallic-conductivity behaviour is observed in the ferromagnetic compound (Co0.45Mn0.55)(2)P. The increase in the Mn concentration gives rise to dramatic changes in magnetic, electronic transport and magneto-transport behaviours. With increasing temperature, a first-order phase transition from antiferromagnetism to ferromagnetism takes place at about 145 K, 185K and 240K for x = 0.60, 0.625 and 0.65, respectively. (Co0.4Mn0.6)(2)P and (Co0.375Mn0.625)(2)P compounds experience a metal-insulator transition (Anderson transition) with decreasing temperature. An external magnetic field of 5 T strongly influences the Anderson transition, lowering the transition temperature from 80 to 55K for (Co0.4Mn0.6)(2)P and from 115 to 70K for (Co0.375Mn0.625)(2)P. In contrast with this metal-insulator transition, an insulating behaviour appears in the temperature range from 10 to 300K for (Co0.35Mn0.65)(2)P and (Co0.325Mn0.675)(2)P compounds. Below the antiferromagnetic-ferromagnetic transition temperature TAF-F, a metamagnetic transition can be induced by an external magnetic field. The metamagnetic transition is accompanied by a maximum magnetoresistance ratio of -7%, -6.3% or -3.7% at 5 T in the (Co0.4Mn0.6)(2)P, (Co0.375Mn0.625)(2)P or (Co0.35Mn0.65)(2)P compound at 10 K. The mechanisms of magnetoresistive behaviours are discussed in terms of the formation of a super-zone gap in the antiferromagnetic state. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34476]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | N. K. Sun,Y. Q. Zhang,Y. B. Li,et al. Magnetic, electronic transport and magneto-transport behaviours of (Co1-xMnx)(2)P compounds[J]. Journal of Physics D-Applied Physics,2006,39(20):4304-4310. |
| APA | N. K. Sun.,Y. Q. Zhang.,Y. B. Li.,D. Li.,W. F. Li.,...&Z. D. Zhang.(2006).Magnetic, electronic transport and magneto-transport behaviours of (Co1-xMnx)(2)P compounds.Journal of Physics D-Applied Physics,39(20),4304-4310. |
| MLA | N. K. Sun,et al."Magnetic, electronic transport and magneto-transport behaviours of (Co1-xMnx)(2)P compounds".Journal of Physics D-Applied Physics 39.20(2006):4304-4310. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。