scholarly journals Translationally Invariant Non-Fermi-Liquid Metals with Critical Fermi Surfaces: Solvable Models

2018 ◽  
Vol 8 (3) ◽  
Author(s):  
Debanjan Chowdhury ◽  
Yochai Werman ◽  
Erez Berg ◽  
T. Senthil
Keyword(s):  
Fermi Liquid ◽  
Liquid Metals ◽  
Solvable Models ◽  
Fermi Surfaces

TOPOLOGICAL FERMI LIQUID EMERGING FROM A BOSONIC MODEL IN OPTICAL SUPERLATTICES

2011 ◽  
Vol 25 (11) ◽  
pp. 813-821 ◽  
Author(s):  
BO-LUN CHEN ◽  
SU-PENG KOU
Keyword(s):  
Fermi Liquid ◽  
Ultracold Atom ◽  
Fermi Surfaces ◽  
Bosonic System ◽  
Bosonic Model ◽  
Particle Approach

In this paper, we systematically analyze the properties of the bosonic t–J model simulated in optical superlattices. In particular, by using a slave-particle approach, we show the emergence of a strange topological Fermi liquid with Fermi surfaces from a purely bosonic system. We also discuss the possibility of observing these phenomena in ultracold atom experiments. The result may provide some crucial insights into the origin of high-Tc superconductivity.

scholarly journals Two-Dimensional Non-Fermi-Liquid Metals: A Solvable Large- N Limit

2019 ◽  
Vol 123 (9) ◽  
Author(s):  
Jeremias Aguilera Damia ◽  
Shamit Kachru ◽  
Srinivas Raghu ◽  
Gonzalo Torroba
Keyword(s):  
Fermi Liquid ◽  
Liquid Metals ◽  
Two Dimensional ◽  
Large N

The two-channel Kondo route to non-Fermi-liquid metals

1996 ◽  
Vol 8 (48) ◽  
pp. 9825-9853 ◽  
Author(s):  
D L Cox ◽  
M Jarrell
Keyword(s):  
Fermi Liquid ◽  
Liquid Metals

scholarly journals The 3-Dimensional Fermi Liquid Description for the Iron-Based Superconductors

2017 ◽  
Vol 190 (1-2) ◽  
pp. 45-66 ◽  
Author(s):  
Setsuo Misawa
Keyword(s):  
Fermi Liquid ◽  
Fermi Liquids ◽  
Electronic Specific Heat ◽  
Superconducting Transition ◽  
Iron Based Superconductors ◽  
Fermi Surfaces ◽  
3 Dimensional ◽  
Quasiparticle Energy ◽  
Iron Based ◽  
Specific Heat Coefficient

Abstract The quasiparticles in the normal state of iron-based superconductors have been shown to behave universally as a 3-dimensional Fermi liquid. Because of interactions and the presence of sharp Fermi surfaces, the quasiparticle energy contains, as a function of the momentum $$\varvec{p}$$ p , a term of the form $$( p - p_0)^3 \ln {( |p-p_0|/p_0)} $$ ( p - p 0 ) 3 ln ( | p - p 0 | / p 0 ) , where $$p = | \varvec{p} |$$ p = | p | and $$p_0$$ p 0 is the Fermi momentum. The electronic specific heat coefficient, magnetic susceptibility (Knight shift), electrical resistivity, Hall coefficient and thermoelectric power divided by temperature follow, as functions of temperature T, the logarithmic formula $$a-b T^2 \ln {(T/T^*)}$$ a - b T 2 ln ( T / T ∗ ) , $$a, \, b$$ a , b and $$T^*$$ T ∗ being constant; these formulae have been shown to explain the observed data for all iron-based superconductors. It is shown that the concept of non-Fermi liquids or anomalous metals which appears in the literature is not needed for descriptions of the present systems. When the superconducting transition temperature $$T_{\mathrm {C}}$$ T C and the b / a value for the resistivity are plotted as functions of the doping content x, there appear various characteristic diagrams in which regions of positive correlation and those of negative correlation between $$T_{\mathrm {C}}$$ T C and b / a are interconnected; from these diagrams, we may make speculations about the types of superconductivity and the crossover between them.

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