Magnetic moment, thermal and electrical transport in the inverse Mott systems BaCo0.9Ni0.1S2-y and CuIr2S4
文献类型：期刊论文
| 作者 | Kang, H ; Mandal, P ; Medvedeva, IV ; Liebe, J ; Rao, GH ; Barner, K ; Poddar, A ; Gmelin, E |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 1998 |
| 卷号 | 83期号:11页码:6977 |
| 关键词 | TRANSITION HEAT |
| ISSN号 | 0021-8979 |
| 通讯作者 | Kang, H: Univ Gottingen, Inst Phys 4, Bunsenstr 13-15, D-37073 Gottingen, Germany. |
| 中文摘要 | The antiferromagnetic BaCo0.9Ni0.1S2-y and the paramagnetic CuIr2S4 Mott systems show an inverse conductivity behavior, i.e., the metallic phase occurs at low or high temperatures, respectively, which also suggests inverse behavior in other transport properties. In this contribution we present magnetization data, conductivity, thermal conductivity, and Seebeck effect in the temperature range 4.2 K < T < 350 K and in particular through the metal-insulator transition at T-MI. We recover the anomalies in chi(T), sigma(T), which are discussed using Jahn-Teller and anti-Jahn-Teller models; also, we compare the anomalies in sigma(T), S(T), and of the heat conductivity K(T) at T-MI. In particular, for BaCo0.9Ni0.1S1.95, we find a step in kappa of almost one order of magnitude (times 6) and a large pressure shift, less than or equal to -24 K/kbar, which makes this material a potential pressure activated heat switch, while CuIr2S4 shows a small step of kappa (times 1.2) and a pressure shift of +2.8 K/bar. (C) 1998 American Institute of Physics. [S0021-8979(98)40211-1]. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/41257]  |
| 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 | Kang, H,Mandal, P,Medvedeva, IV,et al. Magnetic moment, thermal and electrical transport in the inverse Mott systems BaCo0.9Ni0.1S2-y and CuIr2S4[J]. JOURNAL OF APPLIED PHYSICS,1998,83(11):6977. |
| APA | Kang, H.,Mandal, P.,Medvedeva, IV.,Liebe, J.,Rao, GH.,...&Gmelin, E.(1998).Magnetic moment, thermal and electrical transport in the inverse Mott systems BaCo0.9Ni0.1S2-y and CuIr2S4.JOURNAL OF APPLIED PHYSICS,83(11),6977. |
| MLA | Kang, H,et al."Magnetic moment, thermal and electrical transport in the inverse Mott systems BaCo0.9Ni0.1S2-y and CuIr2S4".JOURNAL OF APPLIED PHYSICS 83.11(1998):6977. |
入库方式： OAI收割
来源：物理研究所
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