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Quasi-particle states of a linear chain of vortices in a mixed-state superconductor

Research output: Contribution to journalLetter

Published

Journal publication date27/09/1993
JournalJournal of Physics: Condensed Matter
Journal number39
Volume5
Number of pages6
PagesL475-L480
Original languageEnglish

Abstract

We examine the low-lying quasi-particle states of a chain of vortices contained within a thin slab of superconductor and demonstrate that bound states of individual vortices hybridize to form bands of extended states. As a consequence of the phase gradient around a vortex, one such band is centred on zero energy and will therefore contribute to quasi-particle transport at energies far below the superconducting transition temperature.