A new type of collective excitation in two condensate cuprates

P. V. Shevchenko; O. P. Sushkov

doi:10.1088/0953-2048/11/10/063

A new type of collective excitation in two condensate cuprates

P. V. Shevchenko^*, O. P. Sushkov

^*Corresponding author for this work

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

Abstract

We consider the implications of the two-pocket Fermi surface for macroscopic quantum phenomena in cuprates. Superconductivity in this system can be described in terms of two coupled condensates. It results in a collective excitation corresponding to the relative phase oscillation - a phason. The energy of the phason is smaller than the maximum gap on the Fermi surface. We discuss the possibility of searching for this collective excitation in the dynamic resistance of a superconducting interference device (SQUID).

Original language	English
Pages (from-to)	1190-1192
Number of pages	3
Journal	Superconductor Science and Technology
Volume	11
Issue number	10
DOIs	https://doi.org/10.1088/0953-2048/11/10/063
Publication status	Published - Oct 1998
Externally published	Yes

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title = "A new type of collective excitation in two condensate cuprates",

abstract = "We consider the implications of the two-pocket Fermi surface for macroscopic quantum phenomena in cuprates. Superconductivity in this system can be described in terms of two coupled condensates. It results in a collective excitation corresponding to the relative phase oscillation - a phason. The energy of the phason is smaller than the maximum gap on the Fermi surface. We discuss the possibility of searching for this collective excitation in the dynamic resistance of a superconducting interference device (SQUID).",

author = "Shevchenko, {P. V.} and Sushkov, {O. P.}",

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AU - Sushkov, O. P.

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AB - We consider the implications of the two-pocket Fermi surface for macroscopic quantum phenomena in cuprates. Superconductivity in this system can be described in terms of two coupled condensates. It results in a collective excitation corresponding to the relative phase oscillation - a phason. The energy of the phason is smaller than the maximum gap on the Fermi surface. We discuss the possibility of searching for this collective excitation in the dynamic resistance of a superconducting interference device (SQUID).

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A new type of collective excitation in two condensate cuprates

Abstract

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