Interplay between magnetism and superconductivity in the iron pnictides

A. B. Vorontsov, M. G. Vavilov, A. V. Chubukov

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110 Scopus citations

Abstract

We consider phase transitions and potential coexistence of spin-density-wave (SDW) magnetic order and extended s -wave (s+) superconducting order within a two-band itinerant model of iron pnictides in which SDW magnetism and s+ superconductivity are competing orders. We show that depending on parameters, the transition between these two states is either first order or involves an intermediate phase in which the two orders coexist. We demonstrate that such coexistence is possible when SDW order is incommensurate.

Original languageEnglish (US)
Article number060508
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume79
Issue number6
DOIs
StatePublished - Feb 20 2009

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