Inelastic contribution of the resistivity in the hidden order in URu 2Si2

Abstract

In the hidden order of URu2Si2 the resistivity at very low temperature shows no T2 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 Grüneisen parameter at ambient pressure and the influence of superconductivity by an extrapolation of high field data. © Published under licence by IOP Publishing Ltd.