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

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

doi:10.1103/PhysRevLett.99.217207

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

Strongly Correlated Electrons 2009-11-13 v1

Authors: 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.

Keywords

phase transitions high-pressure phase transitions high-temperature superconductivity

Cite

@article{arxiv.0707.3824,
  title  = {Competing Ordered Phases in URu2Si2: Hydrostatic Pressure and Re-substitution},
  author = {J. R. Jeffries and N. P. Butch and B. T. Yukich and M. B. Maple},
  journal= {arXiv preprint arXiv:0707.3824},
  year   = {2009}
}

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