In-plane thermoelectric power of untwinned YBa2Cu3O7-

J. L. Cohn; E. F. Skelton; S. A. Wolf; J. Z. Liu

doi:10.1103/PhysRevB.45.13140

In-plane thermoelectric power of untwinned YBa2Cu3O7-

J. L. Cohn, E. F. Skelton, S. A. Wolf, J. Z. Liu

Research output: Contribution to journal › Article › peer-review

71 Scopus citations

Abstract

We present the first measurements of the temperature and oxygen-doping dependences of thermoelectric power in the ab plane of untwinned YBa2Cu3O7- (0.10) for T330 K. Employing a two-band model and measured electrical resistivities, we derive the chain and plane components of the thermopower, Sch and Spl. The behavior of Sch indicates that some of the chain conduction occurs via carriers in a narrow band. Spl(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.

Original language	English (US)
Pages (from-to)	13140-13143
Number of pages	4
Journal	Physical Review B
Volume	45
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.45.13140
State	Published - Jan 1 1992
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics

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abstract = "We present the first measurements of the temperature and oxygen-doping dependences of thermoelectric power in the ab plane of untwinned YBa2Cu3O7- (0.10) for T330 K. Employing a two-band model and measured electrical resistivities, we derive the chain and plane components of the thermopower, Sch and Spl. The behavior of Sch indicates that some of the chain conduction occurs via carriers in a narrow band. Spl(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.",

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AU - Cohn, J. L.

AU - Skelton, E. F.

AU - Wolf, S. A.

AU - Liu, J. Z.

PY - 1992/1/1

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N2 - We present the first measurements of the temperature and oxygen-doping dependences of thermoelectric power in the ab plane of untwinned YBa2Cu3O7- (0.10) for T330 K. Employing a two-band model and measured electrical resistivities, we derive the chain and plane components of the thermopower, Sch and Spl. The behavior of Sch indicates that some of the chain conduction occurs via carriers in a narrow band. Spl(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.

AB - We present the first measurements of the temperature and oxygen-doping dependences of thermoelectric power in the ab plane of untwinned YBa2Cu3O7- (0.10) for T330 K. Employing a two-band model and measured electrical resistivities, we derive the chain and plane components of the thermopower, Sch and Spl. The behavior of Sch indicates that some of the chain conduction occurs via carriers in a narrow band. Spl(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.

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