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Cited by 553

The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.

Weak magnetism and non-Fermi liquids near heavy-fermion critical points

Open access
Senthil, T., Vojta, Matthias, Sachdev, Subir·2004·Physical Review B
DOI 10.1103/physrevb.69.035111
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Abstract

This paper is concerned with the weak-moment magnetism in heavy-fermion materials and its relation to the non-Fermi-liquid physics observed near the transition to the Fermi liquid. We explore the hypothesis that the primary fluctuations responsible for the non-Fermi-liquid physics are those associated with the destruction of the large Fermi surface of the Fermi liquid. Magnetism is suggested to be a low-energy instability of the resulting small-Fermi-surface state. A concrete realization of this picture is provided by a fractionalized Fermi-liquid state which has a small Fermi surface of conduction electrons, but also has other exotic excitations with interactions described by a gauge theory in its deconfined phase. Of particular interest is a three-dimensional fractionalized Fermi liquid with a spinon Fermi surface and a U(1) gauge structure. A direct second-order transition from this state to the conventional Fermi liquid is possible and involves a jump in the electron Fermi-surface volume. The critical point displays non-Fermi-liquid behavior. A magnetic phase may develop from a spin-density-wave instability of the spinon Fermi surface. This exotic magnetic metal may have a weak ordered moment, although the local moments do not participate in the Fermi surface. Experimental signatures of this phase and implications for heavy-fermion systems are discussed.

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Metadata

Authors
Senthil, T., Vojta, M., & Sachdev, S.
Venue
Physical Review B
Publisher
American Physical Society (APS)
Published
2004-01-23
Volume
69
Issue
3
ISSN
  • 1098-0121 (ISSN-L)
  • 1550-235X
DOI
10.1103/physrevb.69.035111
OpenAlex
W2116602468
Cited by
553
References
38
FWCI
13.44
Type
journal article
Language
en
Open access
green

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