TOPICAL REVIEW: How do Fermi liquids get heavy and die?
By Piers Coleman, C. Pépin, Qimiao Si, R. Ramazashvili. 2001
265 citations recorded by the source corpus.
We discuss non-Fermi liquid and quantum critical behaviour in heavy-fermion materials, focusing on the mechanism by which the electron mass appears to diverge at the quantum critical point. We ask whether the basic mechanism for the transformation involves electron diffraction off a quantum critical spin-density wave, or whether a breakdown in the composite nature of the heavy electron takes place at the quantum critical point. We show that the Hall constant changes continuously in the first scenario, but may `jump' discontinuously at a quantum critical point where the composite character of the electron quasiparticles changes.
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics
View Paper: https://www.semanticscholar.org/paper/2f359ca8ac4fd4efb80c86281ec97d5397d72907
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In Atomic and Molecular Physics, and Optics
In Condensed Matter Physics
Citations in the corpus
- Quantum criticality (2005, background): “It could be that electrons inside quantum critical matter break up into their constituent spin and charge components[16]—like atoms splitting up into ions in solution.”
- Flat bands, strange metals and the Kondo effect (2023, unknown): “A prominent example is bilayer graphene when twisted to a so-called magic angle 32–36 (Fig.”