Fluctuation-induced pair density wave in itinerant ferromagnets
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.
Citation
Conduit , G J , Pedder , C J & Green , A G 2013 , ' Fluctuation-induced pair density wave in itinerant ferromagnets ' , Physical Review. B, Condensed matter and materials physics , vol. 87 , no. 12 , 121112 . https://doi.org/10.1103/PhysRevB.87.121112
Publication
Physical Review. B, Condensed matter and materials physics
Status
Peer reviewed
ISSN
1098-0121Type
Journal article
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