Anisotropic thermopower in single crystals of the high-Tc superconductor YBa2Cu3O7

Z. Z. Wang; N. P. Ong

doi:10.1103/PhysRevB.38.7160

Anisotropic thermopower in single crystals of the high-Tc superconductor YBa2Cu3O7

Z. Z. Wang, N. P. Ong

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Abstract

The thermopower in single crystals of YBa2Cu3O7 has quite different behavior in the in-plane (Sab) and out-of-plane (Sc) directions. Sab is positive and shows a characteristic peak above Tc while Sc (also positive) increases strongly with temperature with a dependence which may be fitted to T1.65 or AT+BT2. We discuss the role of phonon drag and band filling in affecting the sign of the in-plane thermopower.

Original language	English (US)
Pages (from-to)	7160-7162
Number of pages	3
Journal	Physical Review B
Volume	38
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.38.7160
State	Published - 1988

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.38.7160

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abstract = "The thermopower in single crystals of YBa2Cu3O7 has quite different behavior in the in-plane (Sab) and out-of-plane (Sc) directions. Sab is positive and shows a characteristic peak above Tc while Sc (also positive) increases strongly with temperature with a dependence which may be fitted to T1.65 or AT+BT2. We discuss the role of phonon drag and band filling in affecting the sign of the in-plane thermopower.",

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AU - Ong, N. P.

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AB - The thermopower in single crystals of YBa2Cu3O7 has quite different behavior in the in-plane (Sab) and out-of-plane (Sc) directions. Sab is positive and shows a characteristic peak above Tc while Sc (also positive) increases strongly with temperature with a dependence which may be fitted to T1.65 or AT+BT2. We discuss the role of phonon drag and band filling in affecting the sign of the in-plane thermopower.

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Anisotropic thermopower in single crystals of the high-Tc superconductor YBa2Cu3O7

Abstract

All Science Journal Classification (ASJC) codes

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