Hydrostatic pressure effect on the metal-insulator transition in La0.7Ca0.3Mn1-x(Fe/Ge)(x)O-3 perovskites
文献类型：期刊论文
| 作者 | Medvedeva, IV ; Bersenev, YS ; Haupt, L ; Hamad, N ; Barner, K ; Rao, GH ; Sun, JR |
| 刊名 | HIGH PRESSURE RESEARCH
 |
| 出版日期 | 2000 |
| 卷号 | 18期号:1-6页码:173 |
| 关键词 | MAGNETORESISTANCE TEMPERATURE RESISTIVITY |
| ISSN号 | 0895-7959 |
| 通讯作者 | Barner, K: Univ Gottingen, Inst Phys 4, Bunsenstr 11-15, D-37073 Gottingen, Germany. |
| 中文摘要 | The temperature dependences of the resistivity of La0.7Ca0.3Mn1-xFexO3 and La0.7Ca0.3Mn1-xGexO3 (0 < x < 0.04) mixed crystals were studied under hydrostatic pressures up to 15 kbar. The substitution of Fe for Mn results in an increase of the resistivity and a continuous decrease of the metal-insulator transition temperature T-mb while the substitution of Ge for Mn leads to a more complicated T-mi(x)-curve. In all cases T-mi shifts under pressure with a rate between 1.6 and 2.9 K/kbar and a correlation between T-mi and its pressure derivative dT(mi)/dP is observed which is in accordance with the general trend of dT(mi)/dP versus T-mi as derived for other manganites and is discussed in terms of a competition between superexchange and double exchange. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/39544]  |
| 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 | Medvedeva, IV,Bersenev, YS,Haupt, L,et al. Hydrostatic pressure effect on the metal-insulator transition in La0.7Ca0.3Mn1-x(Fe/Ge)(x)O-3 perovskites[J]. HIGH PRESSURE RESEARCH,2000,18(1-6):173. |
| APA | Medvedeva, IV.,Bersenev, YS.,Haupt, L.,Hamad, N.,Barner, K.,...&Sun, JR.(2000).Hydrostatic pressure effect on the metal-insulator transition in La0.7Ca0.3Mn1-x(Fe/Ge)(x)O-3 perovskites.HIGH PRESSURE RESEARCH,18(1-6),173. |
| MLA | Medvedeva, IV,et al."Hydrostatic pressure effect on the metal-insulator transition in La0.7Ca0.3Mn1-x(Fe/Ge)(x)O-3 perovskites".HIGH PRESSURE RESEARCH 18.1-6(2000):173. |
入库方式： OAI收割
来源：物理研究所
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