Pressure Dependence of the Magnetization in the Ferromagnetic Superconductor UGe2

C. Pfleiderer; A. D. Huxley

doi:10.1103/PhysRevLett.89.147005

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Pressure Dependence of the Magnetization in the Ferromagnetic Superconductor UGe2

C. Pfleiderer, A. D. Huxley

DOI 10.1103/PhysRevLett.89.147005 · Physical Review Letters

T1

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Abstract

We report measurements of the pressure dependence of the low-temperature magnetization that show that the two pressure induced magnetic transitions in UGe2 are of first order. Further, the pressure dependence of the uniform susceptibility relative to the superconducting transition is not as expected if the latter is driven by the proximity to a ferromagnetic quantum critical point. Our data instead suggest that the superconducting pairing could be associated with a sharp spike in the electronic density of states that is also responsible for the lower pressure magnetic transition.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
UGe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown