Inelastic contribution of the resistivity in the hidden order in URu2Si2
E Hassinger, T D Matsuda, G Knebel, V Taufour, D Aoki, J Flouquet
TL;DR
This paper investigates how the resistivity's inelastic component in URu2Si2 changes across phase transitions, revealing the suppression of Fermi liquid behavior in the hidden order phase and its recovery in the antiferromagnetic phase.
Contribution
It provides new insights into the inelastic resistivity behavior in URu2Si2, linking phase transitions with changes in Fermi liquid properties under pressure.
Findings
Resistivity lacks T^2 behavior in the hidden order phase.
Fermi liquid behavior is recovered in the antiferromagnetic phase.
Pressure influences the inelastic contributions and phase transition characteristics.
Abstract
In the hidden order of URu2Si2 the resistivity at very low temperature shows no T^2 behavior above the transition to superconductivity. However, when entering the antiferromagnetic phase, the Fermi liquid behavior is recovered. We discuss the change of the inelastic term when entering the AF phase with pressure considering the temperature dependence of the Grueneisen parameter at ambient pressure and the influence of superconductivity by an extrapolation of high field data.
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