Vanishing of phase coherence in underdoped Bi_2Sr_2CaCu_2O_8+d

J. Corson; R. Mallozzi; J. Orenstein; J. N. Eckstein; I. Bozovic

doi:10.1038/18402

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Vanishing of phase coherence in underdoped Bi_2Sr_2CaCu_2O_8+d

J. Corson·R. Mallozzi·J. Orenstein·J. N. Eckstein·I. Bozovic

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Abstract

Coherent time-domain spectroscopy is used to measure the screening and dissipation of high-frequency electromagnetic fields in a set of underdoped Bi_2Sr_2CaCu_2O_8+d thin films. The measurements provide direct evidence for a phase-fluctuation driven transition from the superconductor to normal state, with dynamics described well by the Berezinskii-Kosterlitz-Thouless theory of vortex-pair unbinding.

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J. Corson, R. Mallozzi, J. Orenstein, J. N. Eckstein, I. Bozovic. 1999-08-25. Vanishing of phase coherence in underdoped Bi_2Sr_2CaCu_2O_8+d. https://doi.org/10.1038/18402

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