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The superconducting ferromagnet UCoGe

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arxiv 1006.0065 v1 pith:VOCNN7MG submitted 2010-06-01 cond-mat.supr-con cond-mat.str-el

A. Gasparini , Y.K. Huang , N.T. Huy , J.C.P. Klaasse , T. Naka , E. Slooten , A. de Visser This is my paper · ORCID
classification cond-mat.supr-concond-mat.str-el
keywords ucogeferromagnetsuperconductivitysuperconductortemperaturearguebasicbelow
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The correlated metal UCoGe is a weak itinerant ferromagnet with a Curie temperature T_C = 3 K and a superconductor with a transition temperature T_s = 0.6 K. We review its basic thermal, magnetic - on the macro and microscopic scale - and transport properties, as well as the response to high pressure. The data unambiguously show that superconductivity and ferromagnetism coexist below T_s = 0.6 K and are carried by the same 5f electrons. We present evidence that UCoGe is a p-wave superconductor and argue that superconductivity is mediated by critical ferromagnetic spin fluctuations.

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