Observation of the conductivity coherence peak in superconducting Bi2Sr2CaCu2O8 single crystals

K. Holczer; L. Forro; L. Mihaly; G. Gr̈ner

doi:10.1103/PhysRevLett.67.152

Observation of the conductivity coherence peak in superconducting Bi2Sr2CaCu2O8 single crystals

K. Holczer
, L. Forro
, L. Mihaly
, G. Gr̈ner

Physics and Astronomy

University of California at Los Angeles
Stony Brook University

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

73 Scopus citations

Abstract

We have measured the surface impedance of Bi2Sr2CaCu2O8 single crystals and have evaluated the conductivity 1 at millimeter-wave frequencies. We observe a peak below Tc which we suggest is due to case-II coherence factors, like the Hebel-Slichter peak observed in the NMR relaxation rate of classical superconductors. A comparison with theory leads to a large gap, suggesting strong coupling.

Original language	English
Pages (from-to)	152-155
Number of pages	4
Journal	Physical Review Letters
Volume	67
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.67.152
State	Published - 1991

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10.1103/PhysRevLett.67.152

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title = "Observation of the conductivity coherence peak in superconducting Bi2Sr2CaCu2O8 single crystals",

abstract = "We have measured the surface impedance of Bi2Sr2CaCu2O8 single crystals and have evaluated the conductivity 1 at millimeter-wave frequencies. We observe a peak below Tc which we suggest is due to case-II coherence factors, like the Hebel-Slichter peak observed in the NMR relaxation rate of classical superconductors. A comparison with theory leads to a large gap, suggesting strong coupling.",

author = "K. Holczer and L. Forro and L. Mihaly and G. G{\"r}ner",

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AU - Holczer, K.

AU - Forro, L.

AU - Mihaly, L.

AU - Gr̈ner, G.

PY - 1991

Y1 - 1991

N2 - We have measured the surface impedance of Bi2Sr2CaCu2O8 single crystals and have evaluated the conductivity 1 at millimeter-wave frequencies. We observe a peak below Tc which we suggest is due to case-II coherence factors, like the Hebel-Slichter peak observed in the NMR relaxation rate of classical superconductors. A comparison with theory leads to a large gap, suggesting strong coupling.

AB - We have measured the surface impedance of Bi2Sr2CaCu2O8 single crystals and have evaluated the conductivity 1 at millimeter-wave frequencies. We observe a peak below Tc which we suggest is due to case-II coherence factors, like the Hebel-Slichter peak observed in the NMR relaxation rate of classical superconductors. A comparison with theory leads to a large gap, suggesting strong coupling.

UR - https://www.scopus.com/pages/publications/12044254781

U2 - 10.1103/PhysRevLett.67.152

DO - 10.1103/PhysRevLett.67.152

M3 - Article

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SN - 0031-9007

VL - 67

SP - 152

EP - 155

JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

ER -

Observation of the conductivity coherence peak in superconducting Bi2Sr2CaCu2O8 single crystals

Abstract

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