Electron transmission between normal and heavy electron metallic phases in a Kondo lattice system

2006/02/28 by M. A. N. Araújo, M. A. N. Araujo, A. H. Castro Neto · 2 citations
Physics and Astronomy · #Condensed matter physics #Electron #Lattice (music) #Materials science #Metal #Metallurgy #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Rare-earth and actinide compounds #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.75.115133

published as Phys. Rev. B 75, 115133 (2007) · 6 pages, 4 figures. Final version published in Physical Review B

openalex publication_date 2007/03/30 · arxiv created 2007/05/03 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The interface between a heavy fermion metallic phase and a ``normal'' (light-fermion) metal phase is discussed. The Fermi momentum mismatch between the two phases causes the carriers to scatter at the interface. The interface conductance is a monotonous increasing function of conduction electron density, n_c, and is almost 60% of that of a clean heavy fermion metal at half-filling (n_c=1) and can be measured experimentally. Interface experiments can be used as a probe of the nature of the homogenous heavy-fermion state and provide important information on the effects of inhomogeneities in heavy-fermion alloys.

Citations

• The break-up of heavy electrons at a quantum critical point
• Disorder-driven non-Fermi liquid behaviour of correlated electrons

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