منابع مشابه
Fermi Liquid near a Quantum Critical Point *
We investigate the approach to the quantum critical point of a Pomeranchuk instability from the symmetric, disordered side of the phase diagram. In the low-temperature limit, a Fermi liquid description of the metal is possible and becomes exact for T → 0. We discuss in detail which features of the approach to quantum criticality can be captured within Fermi liquid theory and which are outside o...
متن کاملLocal Quantum Critical Point and Non-Fermi Liquid Properties
Quantum criticality provides a means to understand the apparent nonFermi liquid phenomena in correlated electron systems. How to properly describe quantum critical points in electronic systems has however been poorly understood. The issues have become particularly well-defined due to recent experiments in heavy fermion metals, in which quantum critical points have been explicitly identified. In...
متن کاملFermi liquid near Pomeranchuk quantum criticality
We analyze the behavior of an itinerant two-dimensional Fermi system near a charge nematic n=2 Pomeranchuk instability in terms of the Landau Fermi-liquid FL theory. A key object of our study is the fully renormalized vertex function , related to the Landau interaction function. We derive for a model case of the long-range interaction in the nematic channel. Already within the random-phase appr...
متن کاملCorrection for Lederer et al., Superconductivity and non-Fermi liquid behavior near a nematic quantum critical point.
Using determinantal quantum Monte Carlo, we compute the properties of a lattice model with spin [Formula: see text] itinerant electrons tuned through a quantum phase transition to an Ising nematic phase. The nematic fluctuations induce superconductivity with a broad dome in the superconducting [Formula: see text] enclosing the nematic quantum critical point. For temperatures above [Formula: see...
متن کاملQuasiparticle interaction function in a two-dimensional Fermi liquid near an antiferromagnetic critical point
We present the expression for the quasiparticle vertex function (KF ,PF ) (proportional to the Landau interaction function) in a 2D Fermi liquid (FL) near an instability towards antiferromagnetism. This function is relevant in many ways in the context of metallic quantum criticality. Previous studies have found that near a quantum critical point, the system enters into a regime in which the fer...
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ژورنال
عنوان ژورنال: Journal of Low Temperature Physics
سال: 2007
ISSN: 0022-2291,1573-7357
DOI: 10.1007/s10909-007-9308-y