Transport properties of the Mn-doped La214 system
Transport properties of the Mn-doped La214 system
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Mn掺杂La214体系的输运特性
DOI：
10.1088/0953-2048/12/7/302
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发表时间：
1999
影响因子：
3.6
通讯作者：
Y. H. Zhang
中科院分区：
文献类型：
--
作者：
Gaojie Xu;Zhehua Mao;Hao Jin;Hongjie Yan;M. Tian;Y. H. Zhang
利用电阻率和热电势研究了La1.85-xSr0.15+xCu1-xMnxO4体系的常态输运性质。实验结果表明，Mn掺杂引起强烈的晶格变形，导致空穴逐渐局部化。从晶体结构和d-p杂化态的变化角度讨论了电阻率与温度的关系、S-T曲线中的宽峰以及峰的移动。
The normal-state transport properties of the La1.85-xSr0.15+xCu1-xMnxO4 system have been investigated by means of resistivity and thermoelectric power. The experimental results indicate that Mn doping induces a strong lattice deformation and leads to a gradual localization of the holes. The temperature-dependent resistivity and the broad peak in the S-T curve as well as the shift of the peak are discussed in terms of the change of crystal structure and d-p hybridization state.