Pressure-induced residual resistivity anomaly in CeCu5Au
H. Wilhelm, S. Raymond, D. Jaccard, O. Stockert, H. v. Loehneysen, A. Rosch
Abstract
The electrical resistivity of the magnetically ordered CeCu5Au has been investigated under pressure up to 8.5 GPa. In the magnetically ordered region (p<3.4 GPa) the residual resistivity rho0 shows a pronounced maximum as a function of pressure. Even in the nonmagnetic region rho0 decreases monotonically by more than a factor of three. These two effects can be qualitatively explained in terms of the interplay of pressure, magnetism and disorder in a strongly correlated electron system with weak disorder.
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