Critical Fermi surfaces and non-Fermi liquid metals
نویسندگان
چکیده
منابع مشابه
Bose-Metals and non-Fermi-liquid metals.dvi
Underlying the quantum theory of many-particle non-relativistic systems are the canonical quantum fluids superfluid phases of Bosons and Fermiliquid phases of Fermions. These two quantum phases of matter are extremely well understood, and are both accessible from models of weakly interacting particles. The only low energy excitation in a superfluid is the Goldstone mode of the broken particle n...
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Electron-electron interactions can induce Fermi surface deformations which break the point-group symmetry of the lattice structure of the system. In the vicinity of such a "Pomeranchuk instability" the Fermi surface is easily deformed by anisotropic perturbations, and exhibits enhanced collective fluctuations. We show that critical Fermi surface fluctuations near a d-wave Pomeranchuk instabilit...
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A relatively new class of materials has been found in which the basic assumption of Landau Fermi-liquid theory—that at low energies the electrons in a metal should behave essentially as a collection of weakly interacting particles—is violated. These ‘‘non-Fermi-liquid’’ systems exhibit unusual temperature dependences in their low-temperature properties, including several examples in which the s...
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We study the RKKY interaction in non-Fermi-liquid metals. We find that the RKKY interaction mediated by some non-Fermi-liquid metals can be of much longer range than for a Fermi liquid. The oscillatory nature of the RKKY interaction thus becomes more important in such non-Fermi liquids, and gives rise to enhanced frustration when the spins form a lattice. Frustration suppresses the magnetic ord...
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We show that there is a close correspondence between the physical properties of holographic metals near charged black holes in anti-de Sitter (AdS) space, and the fractionalized Fermi liquid phase of the lattice Anderson model. The latter phase has a "small" Fermi surface of conduction electrons, along with a spin liquid of local moments. This correspondence implies that certain mean-field gapl...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2008
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.78.035103