Dissymmetrical tunnelling in heavy fermion metals

Abstract

A tunnelling conductivity between a heavy fermion metal and a simple metallic point is considered. We show that at low temperatures this conductivity can be noticeably dissymmetrical with respect to the change of voltage bias. The dissymmetry can be observed in experiments on the heavy fermion metals whose electronic system has undergone the fermion condensation quantum phase transition.

7 pages, Revtex

References in corpus (3)

• The break up of heavy electrons at a quantum critical point
• Anomalous Behavior of Thermodynamic Properties of Strongly Correlated Fermi Systems
• Universal Behavior of Heavy-Fermion Metals Near a Quantum Critical Point

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• Quantum Phase Transition in $\mathrm{CeCoI}{\mathrm{n}}_5$: Experimental Facts and Theory
• Quasiparticles near quantum phase transition in heavy fermion metals