Superconductivity in uranium compounds

V. P. Mineev

doi:10.1103/PhysRevB.90.064506

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Superconductivity in uranium compounds

V. P. Mineev

DOI 10.1103/PhysRevB.90.064506 · Physical Review B

T1

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Abstract

On the basis of microscopic theory it is demonstrated how the coupling between the electrons by means of magnetization fluctuations in ferromagnetic metals with orthorhombic symmetry gives rise to an equal-spin pairing superconducting state with the general form of the order parameter dictated by symmetry. The strong upturn of the upper critical field along the b direction above 5 T in UCoGe is explained by the increase of the pairing interaction caused by the suppression of the Curie temperature by a magnetic field parallel to the b axis. It is proposed that a similar phenomenon at a much higher field must take place also for a field directed along the magnetically hardest a direction.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
UCoGe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	0.6	Pressure not reported	unknown