Structural, magnetic, and electrical properties of La1-xNdxMn0.8Cr0.2O3 (x <= 0.3)
文献类型：期刊论文
| 作者 | Liao, DQ ; Sun, Y ; Yang, RF ; Cheng, ZH |
| 刊名 | PHYSICA B-CONDENSED MATTER
 |
| 出版日期 | 2007 |
| 卷号 | 394期号:1页码:104 |
| ISSN号 | 0921-4526 |
| 中文摘要 | We have investigated the structural, magnetic, and electrical transport properties of a series of ABO(3)-type perovskite compounds, La1-xNdxMn0.8Cr0.2O3 (x <= 0.3). The parent compound LaMn0.8Cr0.2O3 is a ferromagnetic semiconductor with a Curie temperature T-c of 156 K. Upon Nd doping on La sites, the lattice parameters, unit cell volume, the B-O-B bond angle, and the B-O bond length are reduced. The Curie temperature decreases with increasing Nd content. However, Nd doping enhances the saturation magnetization at 5 K, which indicates that the Nd3+ moments tend to be parallel to the Mn3+/Cr3+ moments at low temperature. All the samples are semiconducting throughout the temperature range studied. The resistivity can be described by the adiabatic small polaron hoping model, with an apparent reduction of polaron activation energy (E-a) below T-c. In a 13 T high magnetic field, the resistivity remains semiconducting although E-a is suppressed. The effects of Nd doping in LaMn0.8Cr0.2O3 are discussed in terms of the smaller size and the high moment of Nd3+ ions. (c) 2007 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/53401]  |
| 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 | Liao, DQ,Sun, Y,Yang, RF,et al. Structural, magnetic, and electrical properties of La1-xNdxMn0.8Cr0.2O3 (x <= 0.3)[J]. PHYSICA B-CONDENSED MATTER,2007,394(1):104. |
| APA | Liao, DQ,Sun, Y,Yang, RF,&Cheng, ZH.(2007).Structural, magnetic, and electrical properties of La1-xNdxMn0.8Cr0.2O3 (x <= 0.3).PHYSICA B-CONDENSED MATTER,394(1),104. |
| MLA | Liao, DQ,et al."Structural, magnetic, and electrical properties of La1-xNdxMn0.8Cr0.2O3 (x <= 0.3)".PHYSICA B-CONDENSED MATTER 394.1(2007):104. |
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来源：物理研究所
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