Anisotropy of the thermal conductivity of YBa2Cu3O7-y

S. J. Hagen; Z. Z. Wang; N. P. Ong

doi:10.1103/PhysRevB.40.9389

Anisotropy of the thermal conductivity of YBa2Cu3O7-y

S. J. Hagen, Z. Z. Wang, N. P. Ong

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192 Scopus citations

Abstract

The thermal conductivity, both in-plane (ab) and out-of-plane (c), has been measured in 90-K crystals of YBa2Cu3O7-y from 10 to 330 K. ab displays an 18 to 40% increase below the transition temperature Tc (as in ceramic data). c, however, is four to five times smaller and shows no anomaly at Tc. Comparing these results to ab of insulating crystals, we find evidence for very strong but highly anisotropic electron-phonon coupling in the normal state. Our results are consistent with a phonon origin for the peak in ab.. AE

Original language	English (US)
Pages (from-to)	9389-9392
Number of pages	4
Journal	Physical Review B
Volume	40
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.40.9389
State	Published - 1989

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.40.9389

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title = "Anisotropy of the thermal conductivity of YBa2Cu3O7-y",

abstract = "The thermal conductivity, both in-plane (ab) and out-of-plane (c), has been measured in 90-K crystals of YBa2Cu3O7-y from 10 to 330 K. ab displays an 18 to 40% increase below the transition temperature Tc (as in ceramic data). c, however, is four to five times smaller and shows no anomaly at Tc. Comparing these results to ab of insulating crystals, we find evidence for very strong but highly anisotropic electron-phonon coupling in the normal state. Our results are consistent with a phonon origin for the peak in ab.. AE",

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T1 - Anisotropy of the thermal conductivity of YBa2Cu3O7-y

AU - Hagen, S. J.

AU - Wang, Z. Z.

AU - Ong, N. P.

PY - 1989

Y1 - 1989

N2 - The thermal conductivity, both in-plane (ab) and out-of-plane (c), has been measured in 90-K crystals of YBa2Cu3O7-y from 10 to 330 K. ab displays an 18 to 40% increase below the transition temperature Tc (as in ceramic data). c, however, is four to five times smaller and shows no anomaly at Tc. Comparing these results to ab of insulating crystals, we find evidence for very strong but highly anisotropic electron-phonon coupling in the normal state. Our results are consistent with a phonon origin for the peak in ab.. AE

AB - The thermal conductivity, both in-plane (ab) and out-of-plane (c), has been measured in 90-K crystals of YBa2Cu3O7-y from 10 to 330 K. ab displays an 18 to 40% increase below the transition temperature Tc (as in ceramic data). c, however, is four to five times smaller and shows no anomaly at Tc. Comparing these results to ab of insulating crystals, we find evidence for very strong but highly anisotropic electron-phonon coupling in the normal state. Our results are consistent with a phonon origin for the peak in ab.. AE

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DO - 10.1103/PhysRevB.40.9389

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EP - 9392

JO - Physical Review B

JF - Physical Review B

IS - 13

ER -

Anisotropy of the thermal conductivity of YBa2Cu3O7-y

Abstract

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