Universality in Heavy Fermions Revisited

Abstract

A previous scaling analysis of pressure experiments in heavy fermion is reviewed and enlarged. We show that the critical exponents obtained from this analysis indicate that a one-parameter scaling describes these experiments. We obtain explicitly the enhancemente factors showing that these systems are indeed near criticality and that the scaling approach is appropriate. The physics responsible for the one-parameter scaling and breakdown of hyperscaling is clarified. We discuss a microsocopic theory that is in agreement with the experiments. The scaling theory is generalized for the case the shift and crossover exponents are different. The exponents governing the physical behavior along the non-Fermi liquid trajectory are obtained for this case.

7 pages, Latex, 3 Postscript figures, to be published in Physical Review B

References in corpus (1)

• A mechanism for the non-Fermi-liquid behavior in CeCu_{6-x}Au_x

Cited by in corpus (5)

• Quantum Lifshitz Point
• Short-range antiferromagnetic correlations in Kondo insulators
• High Field Ultrasound Measurements in UPt3 and the Single Energy Scale Model of Metamagnetism
• Renormalization group approach of itinerant electron systems near the Lifshitz point
• Dimensional Crossover in Heavy Fermions