Superconducting Gap of UCoGe probed by Thermal Transport

Abstract

Thermal conductivity measurements in the superconducting state of the ferromagnet UCoGe were performed at very low temperatures and under magnetic field on samples of different qualities and with the heat current along the three crystallographic axis. This allows to disentangle intrinsic and extrinsic effects, confirm the situation of multigap superconductivity and shed new light on the situation expected or claimed for the gap in these ferromagnetic superconductors, like evidences of absence of "partially gapped" Fermi surfaces.

arXiv comment6 pages, 5 figures. To be appeared in Physical Review Rapid Communication

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Cited by in corpus (9)

• Unconventional Superconductivity in UTe2
• Superconductivity in Uranium Ferromagnets
• Symmetry protected line nodes in non-symmorphic magnetic space groups: Applications to UCoGe and UPd${}_2$Al${}_3$
• Theory of spin-polarized superconductors -- an analogue of superfluid ${}^3$He A-phase
• Non-unitary triplet superconductivity tuned by field-controlled magnetization --URhGe, UCoGe and UTe${}_2$--
• Enhancement of superconductivity by pressure-induced critical ferromagnetic fluctuations in UCoGe
• Spin-triplet superconductivity in the paramagnetic UCoGe under pressure studied by ${}^{59}$Co NMR
• Vortex liquid phase in the p-wave ferromagnetic superconductor UCoGe
• Electron-beam Floating-zone Refined UCoGe