Nematicity and nematic fluctuations in iron-based superconductors

AE Böhmer, JH Chu, S Lederer, M Yi - Nature Physics, 2022 - nature.com
The spontaneous reduction of rotational symmetry in a crystalline solid driven by an
electronic mechanism is referred to as electronic nematicity. This phenomenon—initially …

Fermi-liquid instabilities at magnetic quantum phase transitions

H Löhneysen, A Rosch, M Vojta, P Wölfle - Reviews of Modern Physics, 2007 - APS
This review discusses instabilities of the Fermi-liquid state of conduction electrons in metals
with particular emphasis on magnetic quantum critical points. Both existing theoretical …

Nematic Fermi fluids in condensed matter physics

E Fradkin, SA Kivelson, MJ Lawler… - Annu. Rev. Condens …, 2010 - annualreviews.org
Correlated electron fluids can exhibit a startling array of complex phases, among which one
of the more surprising is the electron nematic, a translationally invariant metallic phase with …

Cooper pairing in non-Fermi liquids

MA Metlitski, DF Mross, S Sachdev, T Senthil - Physical Review B, 2015 - APS
States of matter with a sharp Fermi surface but no well-defined Landau quasiparticles arise
in a number of physical systems. Examples include (i) quantum critical points associated …

Functional renormalization group approach to correlated fermion systems

W Metzner, M Salmhofer, C Honerkamp, V Meden… - Reviews of Modern …, 2012 - APS
Numerous correlated electron systems exhibit a strongly scale-dependent behavior. Upon
lowering the energy scale, collective phenomena, bound states, and new effective degrees …

Enhancement of superconductivity near a nematic quantum critical point

S Lederer, Y Schattner, E Berg, SA Kivelson - Physical review letters, 2015 - APS
We consider a low T c metallic superconductor weakly coupled to the soft fluctuations
associated with proximity to a nematic quantum critical point (NQCP). We show that (1) a …

Inelastic light scattering from correlated electrons

TP Devereaux, R Hackl - Reviews of modern physics, 2007 - APS
Inelastic light scattering is an intensively used tool in the study of electronic properties of
solids. Triggered by the discovery of high-temperature superconductivity in the cuprates and …

Superconductivity and non-Fermi liquid behavior near a nematic quantum critical point

S Lederer, Y Schattner, E Berg… - Proceedings of the …, 2017 - National Acad Sciences
Using determinantal quantum Monte Carlo, we compute the properties of a lattice model
with spin 1 2 itinerant electrons tuned through a quantum phase transition to an Ising …

Quantum phase transitions of metals in two spatial dimensions. I. Ising-nematic order

MA Metlitski, S Sachdev - Physical Review B—Condensed Matter and …, 2010 - APS
We present a renormalization-group theory for the onset of Ising-nematic order in a Fermi
liquid in two spatial dimensions. This is a quantum phase transition, driven by electron …

Lattice symmetry breaking in cuprate superconductors: stripes, nematics, and superconductivity

M Vojta - Advances in Physics, 2009 - Taylor & Francis
This article gives an overview of both theoretical and experimental developments
concerning states with lattice symmetry breaking in the cuprate high-temperature …