Magnetic and electrical transport properties of Cr-3(Se1-xTex)(4) compounds
文献类型：期刊论文
| 作者 | Y. B. Li ; E. Brueck ; O. Tegus ; Y. Q. Zhang ; W. T. Feng ; N. K. Sun ; D. Li ; J. Li ; T. J. Gortenmulder ; Y. K. Huang ; Z. D. Zhang |
| 刊名 | Journal of Alloys and Compounds
 |
| 出版日期 | 2008 |
| 卷号 | 461期号:1-2页码:21-25 |
| 关键词 | magnetic resistivity metal-insulator transition magnetoresistance giant magnetoresistance colossal magnetoresistance negative magnetoresistance quantum interference temperature systems mn electroconductivity semiconductors conductivity |
| ISSN号 | 0925-8388 |
| 中文摘要 | The magnetic and electrical transport behaviors of Cr-3(Se1-xTex)(4) compounds are investigated. A transition from antiferromagnetism to ferromagnetism occurs at x = 0.2 in this system and abnormal changes of the lattice parameter alpha and angle beta take place around the magnetic transition point. When Se is partially substituted by T-min a minimum of resistivity (rho(min)) is observed in the temperature dependence of resistivity. The temperature T-min where the minimum rho(min) is, increases with T-min concentration. The minimum in resistivity at T-min is ascribed to the competition between a diminishing resistivity due to domain ordering and a rising resistivity due to disordered frozen spins in each domain. The electrical transport behavior below T-min is described by hopping conductivity in terms of variable range-hopping. An external magnetic field affects strongly the resistivity of the Cr-3(Se1-xTex)(4) compounds, which shifts the magnetic ordering temperature T-MO to higher temperature and T-min to lower temperature. Subsequently, a negative magnetoresistance is found in this system. (c) 2007 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32904]  |
| 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 | Y. B. Li,E. Brueck,O. Tegus,et al. Magnetic and electrical transport properties of Cr-3(Se1-xTex)(4) compounds[J]. Journal of Alloys and Compounds,2008,461(1-2):21-25. |
| APA | Y. B. Li.,E. Brueck.,O. Tegus.,Y. Q. Zhang.,W. T. Feng.,...&Z. D. Zhang.(2008).Magnetic and electrical transport properties of Cr-3(Se1-xTex)(4) compounds.Journal of Alloys and Compounds,461(1-2),21-25. |
| MLA | Y. B. Li,et al."Magnetic and electrical transport properties of Cr-3(Se1-xTex)(4) compounds".Journal of Alloys and Compounds 461.1-2(2008):21-25. |
入库方式： OAI收割
来源：金属研究所
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