Fluctuation-induced pair density wave in itinerant ferromagnets

G. J. Conduit*, C. J. Pedder, A. G. Green

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Magnetic fluctuations near to quantum criticality can have profound effects. They lead to characteristic scaling at high temperature which may ultimately give way to a reconstruction of the phase diagram and the formation of new phases at low temperatures. The ferromagnet UGe2 is unstable to p-wave superconducting order-an effect presaged by the superfluidity in 3He whereas in CeFePO fluctuations drive the formation of spiral magnetic order. Here we develop a general quantum order-by-disorder description of these systems that encompasses both of these instabilities within a unified framework. This allows us to demonstrate that in fact these instabilities intertwine to form a pair density wave.

Original languageEnglish
Article number121112
Number of pages5
JournalPhysical Review. B, Condensed matter and materials physics
Volume87
Issue number12
DOIs
Publication statusPublished - 27 Mar 2013

Keywords

  • Superconductivity
  • Transitions
  • Coexistence
  • Systems
  • Points
  • State
  • UGE2

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