Specific heat of single crystals of YBa2Cu3O7-: Fluctuation effects in a bulk superconductor

S. E. Inderhees; M. B. Salamon; Nigel Goldenfeld; J. P. Rice; B. G. Pazol; D. M. Ginsberg; J. Z. Liu; G. W. Crabtree

doi:10.1103/PhysRevLett.60.1178

Specific heat of single crystals of YBa2Cu3O7-: Fluctuation effects in a bulk superconductor

S. E. Inderhees, M. B. Salamon, Nigel Goldenfeld, J. P. Rice, B. G. Pazol, D. M. Ginsberg, J. Z. Liu, G. W. Crabtree

Physics

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

Abstract

Gaussian fluctuations have been observed in the specific heat of two single crystals YBa2Cu3O7. Deviations from a BCS-type step are well accounted for by 3D Gaussian fluctuations whose amplitude ratio, in the cleaner sample, implies that the number of order-parameter components is 7. This result is inconsistent with an O(2) Ginzburg-Landau theory.

Original language	English (US)
Pages (from-to)	1178-1180
Number of pages	3
Journal	Physical review letters
Volume	60
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.60.1178
State	Published - 1988

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10.1103/PhysRevLett.60.1178

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abstract = "Gaussian fluctuations have been observed in the specific heat of two single crystals YBa2Cu3O7. Deviations from a BCS-type step are well accounted for by 3D Gaussian fluctuations whose amplitude ratio, in the cleaner sample, implies that the number of order-parameter components is 7. This result is inconsistent with an O(2) Ginzburg-Landau theory.",

author = "Inderhees, {S. E.} and Salamon, {M. B.} and Nigel Goldenfeld and Rice, {J. P.} and Pazol, {B. G.} and Ginsberg, {D. M.} and Liu, {J. Z.} and Crabtree, {G. W.}",

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T2 - Fluctuation effects in a bulk superconductor

AU - Inderhees, S. E.

AU - Salamon, M. B.

AU - Goldenfeld, Nigel

AU - Rice, J. P.

AU - Pazol, B. G.

AU - Ginsberg, D. M.

AU - Liu, J. Z.

AU - Crabtree, G. W.

PY - 1988

Y1 - 1988

N2 - Gaussian fluctuations have been observed in the specific heat of two single crystals YBa2Cu3O7. Deviations from a BCS-type step are well accounted for by 3D Gaussian fluctuations whose amplitude ratio, in the cleaner sample, implies that the number of order-parameter components is 7. This result is inconsistent with an O(2) Ginzburg-Landau theory.

AB - Gaussian fluctuations have been observed in the specific heat of two single crystals YBa2Cu3O7. Deviations from a BCS-type step are well accounted for by 3D Gaussian fluctuations whose amplitude ratio, in the cleaner sample, implies that the number of order-parameter components is 7. This result is inconsistent with an O(2) Ginzburg-Landau theory.

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Specific heat of single crystals of YBa2Cu3O7-: Fluctuation effects in a bulk superconductor

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