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Cited by 522

The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Vanishing of phase coherence in underdoped Bi2Sr2CaCu2O8+δ

Open access
Corson, J., Mallozzi, R., Orenstein, J., Eckstein, J. N., Bozovic, I.·1999·Nature

Abstract

Although the binding of electrons into Cooper pairs is essential in forming the superconducting state, its remarkable properties—zero resistance and perfect diamagnetism—require phase coherence among the pairs as well. When coherence is lost at the transition temperature T c, pairing remains, together with phase correlations which are finite in space and time. In conventional metals, Cooper pairs with short-range phase coherence survive no more than 1 K above T c. In underdoped high-T c copper oxides, spectroscopic evidence for some form of pairing is found up to a temperature T *, which is roughly 100 K above T c (refs 1,2,3). How this pairing and Cooper-pair formation are related is a central problem in high-T c superconductivity. The nature of this relationship hinges on the extent to which phase correlations accompany pairing in the normal state. Here we report measurements of high-frequency conductivity that track the phase-correlation timeτ in the normal state of the Bi2Sr2CaCu2O8+δ family of underdoped copper oxide superconductors. Just above T c, we find that τ reflects the motion of thermally generated topological defects in the phase, or vortices,. However, vortex proliferation reduces τ to a value indistinguishable from the lifetime of normal-state electrons at 100 K, well below T *.

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Metadata

Authors
Corson, J., Mallozzi, R., Orenstein, J., Eckstein, J. N., & Bozovic, I.
Venue
Nature
Published
1999-03
Volume
398
Issue
6724
Pages
221-223
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1938021591
Cited by
522
References
12
FWCI
29.65
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Vanishing of phase coherence in underdoped Bi2Sr2CaCu2O8+δ. https://app.cochat.ai/papers/10.1038/18402
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Corson, J., Mallozzi, R., Orenstein, J., Eckstein, J. N., & Bozovic, I. (1999). Vanishing of phase coherence in underdoped Bi2Sr2CaCu2O8+δ. Nature. https://doi.org/10.1038/18402

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