Title: Quasiparticle Scattering in a Superconductor near a Nematic Critical Point: Resonance Mode and Multiple Attractive Channels

Journal Article · · Physical Review Letters
ORCiD logo [1];  [2]; ORCiD logo [2]
  1. Univ. of Minnesota, Minneapolis, MN (United States); OSTI
  2. Univ. of Minnesota, Minneapolis, MN (United States)
+ Show Author Affiliations

We analyze the scattering rate for 2D fermions interacting via soft nematic fluctuations. The ground state is an s-wave superconductor, but other pairing channels are almost equally attractive. This strongly alters the scattering rate: At energies beyond the pairing gap Δ, it is renormalized by contributions from all pairing channels. At energies of order Δ, it is determined by the competition between scattering into a gapped continuum and dispersing nematic resonance. The outcome is a “peak-peak-dip-hump” spectrum, similar, but not identical, to the “peak-dip-hump” structure in the cuprates.

Research Organization:
Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0014402
OSTI ID:
1980251
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 1 Vol. 128; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (32)

Fingerprints of spin mediated pairing in cuprates journal June 2001
Multiple intertwined pairing states and temperature-sensitive gap anisotropy for superconductivity at a nematic quantum-critical point journal November 2019
Quantum-critical theory of the spin-fermion model and its application to cuprates: Normal state analysis journal March 2003
The effect of collective spin-1 excitations on electronic spectra in high- T c superconductors journal January 2006
Nematicity, magnetism and superconductivity in FeSe journal December 2017
Near-degeneracy of several pairing channels in multiorbital models for the Fe pnictides journal February 2009
Superconducting gap and nematic resonance at the quantum critical point observed by Raman scattering in BaFe 2 ( As 1 − x P x ) 2 journal February 2020
One-dimensional scattering of two-dimensional fermions near quantum criticality journal June 2021
Polarized and unpolarized neutron-scattering study of the dynamical spin susceptibility of Y Ba 2 Cu 3 O 7 journal September 1996
Spectral function of two-dimensional Fermi liquids journal April 1998
Low-energy collective modes, Ginzburg-Landau theory, and pseudogap behavior in superconductors with long-range pairing interactions journal November 2000
Singular perturbation theory for interacting fermions in two dimensions journal May 2005
Reevaluation of the coupling to a bosonic mode of the charge carriers in ( Bi , Pb ) 2 Sr 2 Ca Cu 2 O 8 + δ at the antinodal point journal October 2006
Low-energy effective theory of Fermi surface coupled with U(1) gauge field in 2 + 1 dimensions journal October 2009
Fermi liquid near Pomeranchuk quantum criticality journal January 2010
Quantum phase transitions of metals in two spatial dimensions. I. Ising-nematic order journal August 2010
Critical quadrupole fluctuations and collective modes in iron pnictide superconductors journal February 2016
Raman resonance in iron-based superconductors: The magnetic scenario journal February 2016
Signature of the Leggett mode in the A 1 g Raman response: From MgB 2 to iron-based superconductors journal August 2016
Superconductivity and electronic fluctuations in Ba 1 − x K x Fe 2 As 2 studied by Raman scattering journal February 2017
Conservation laws, vertex corrections, and screening in Raman spectroscopy journal July 2017
Superconductivity near a nematic quantum critical point: Interplay between hot and lukewarm regions journal December 2018
Enhancement of Superconductivity near a Nematic Quantum Critical Point journal March 2015
Nematic Resonance in the Raman Response of Iron-Based Superconductors journal January 2016
Electronic Spectra and Their Relation to the ( π , π ) Collective Mode in High- T c Superconductors journal November 1999
Quasiparticles in the Superconducting State of Bi 2 Sr 2 CaCu 2 O 8 + δ journal February 2000
Correlation of Tunneling Spectra in Bi 2 Sr 2 CaCu 2 O 8 + δ with the Resonance Spin Excitation journal July 2001
Soft Fermi Surfaces and Breakdown of Fermi-Liquid Behavior journal August 2003
Temperature-Induced Momentum-Dependent Spectral Weight Transfer in Bi 2 Sr 2 CaCu 2 O 8+δ journal April 1998
The Magnetic Excitation Spectrum and Thermodynamics of High-Tc Superconductors journal May 1999
Evidence for Quantum Critical Behavior in the Optimally Doped Cuprate Bi2Sr2CaCu2O8+ journal September 1999
The Spin Excitation Spectrum in Superconducting YBa2Cu3O6.85 journal May 2000

Similar Records

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
Physics
electronic structure
high-temperature superconductors
iron-based superconductors
methods in superconductivity
nematic phase transition
quantum criticality
superconducting order parameter
superconducting phase transition