INPLANE THERMOELECTRIC-POWER OF UNTWINNED YBA2CU3O7-DELTA

被引：68

作者：

COHN, JL ^{[1
]}

SKELTON, EF ^{[1
]}

WOLF, SA ^{[1
]}

LIU, JZ ^{[1
]}

机构：

[1] UNIV CALIF DAVIS,DEPT PHYS,DAVIS,CA 95616

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.45.13140

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present the first measurements of the temperature and oxygen-doping dependences of thermoelectric power in the ab plane of untwinned YBa2Cu3O7-delta (delta almost equal to 0.10) for T less than or equal to 330 K. Employing a two-band model and measured electrical resistivities, we derive the chain and plane components of the thermopower, S(ch) and S(pl). The behavior of S(ch) indicates that some of the chain conduction occurs via carriers in a narrow band. S(pl)(T) is similar to the in-plane thermopower of the other cuprates, suggesting a "universal" behavior for the CuO2 planes. The results are discussed with reference to the known Fermi surface.

引用

页码：13140 / 13143

页数：4

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