Pairing-bag excitations in small-coherence-length superconductors

Alan Bishop; P. S. Lomdahl; J. R. Schrieffer; Stuart Alan Trugman

doi:10.1103/PhysRevLett.61.2709

Pairing-bag excitations in small-coherence-length superconductors

Alan Bishop
, P. S. Lomdahl
, J. R. Schrieffer
, Stuart Alan Trugman

Los Alamos National Laboratory

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

38 Scopus citations

Abstract

Localized baglike solutions in the pairing theory of superconductivity are studied. Starting from the Bogoliubov de Gennes equations on a two-dimensional square lattice for half-filled negative-U Hubbard model, cigar- and star-shaped bags are numerically obtained, inside of which the order parameter is reduced, self-consistently trapping an added quasiparticle. These nonlinear excitations are important when the coherence length is small as for the new high-temperature superconductors. Several experimental consequences are discussed.

Original language	English
Pages (from-to)	2709-2712
Number of pages	4
Journal	Physical Review Letters
Volume	61
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.61.2709
State	Published - Jan 1 1988

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title = "Pairing-bag excitations in small-coherence-length superconductors",

abstract = "Localized baglike solutions in the pairing theory of superconductivity are studied. Starting from the Bogoliubov de Gennes equations on a two-dimensional square lattice for half-filled negative-U Hubbard model, cigar- and star-shaped bags are numerically obtained, inside of which the order parameter is reduced, self-consistently trapping an added quasiparticle. These nonlinear excitations are important when the coherence length is small as for the new high-temperature superconductors. Several experimental consequences are discussed.",

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AU - Trugman, Stuart Alan

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Y1 - 1988/1/1

N2 - Localized baglike solutions in the pairing theory of superconductivity are studied. Starting from the Bogoliubov de Gennes equations on a two-dimensional square lattice for half-filled negative-U Hubbard model, cigar- and star-shaped bags are numerically obtained, inside of which the order parameter is reduced, self-consistently trapping an added quasiparticle. These nonlinear excitations are important when the coherence length is small as for the new high-temperature superconductors. Several experimental consequences are discussed.

AB - Localized baglike solutions in the pairing theory of superconductivity are studied. Starting from the Bogoliubov de Gennes equations on a two-dimensional square lattice for half-filled negative-U Hubbard model, cigar- and star-shaped bags are numerically obtained, inside of which the order parameter is reduced, self-consistently trapping an added quasiparticle. These nonlinear excitations are important when the coherence length is small as for the new high-temperature superconductors. Several experimental consequences are discussed.

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JO - Physical Review Letters

JF - Physical Review Letters

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ER -

Pairing-bag excitations in small-coherence-length superconductors

Abstract

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