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arXiv · 0707.3824

Competing Ordered Phases in URu2Si2: Hydrostatic Pressure and Re-substitution

J. R. Jeffries·N. P. Butch·B. T. Yukich·M. B. Maple
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Abstract

A persistent kink in the pressure dependence of the \hidden order" (HO) transition temperature of URu2-xRexSi2 is observed at a critical pressure Pc=15 kbar for 0 < x < 0.08. In URu2Si2, the kink at Pc is accompanied by the destruction of superconductivity; a change in the magnitude of a spin excitation gap, determined from electrical resistivity measurements; and a complete gapping of a portion of the Fermi surface (FS), inferred from a change in scattering and the competition between the HO state and superconductivity for FS fraction.

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J. R. Jeffries, N. P. Butch, B. T. Yukich, M. B. Maple. 2007-07-25. Competing Ordered Phases in URu2Si2: Hydrostatic Pressure and Re-substitution. https://doi.org/10.1103/physrevlett.99.217207

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