Superconductivity and non-Fermi liquid behavior near a nematic quantum critical point
DownloadSuperconductivity and non-Fermi liquid behavior near a nematic quantum critical point (4.593Mb)
PUBLISHER_POLICY
Publisher Policy
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Terms of use
Metadata
Show full item recordAbstract
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 nematic phase. The nematic fluctuations induce superconductivity with a broad dome in the superconducting T[subscript c] enclosing the nematic quantum critical point. For temperatures above T[subscript c], we see strikingly non- Fermi liquid behavior, including a "nodal-antinodal dichotomy" reminiscent of that seen in several transition metal oxides. In addition, the critical fluctuations have a strong effect on the lowfrequency optical conductivity, resulting in behavior consistent with "bad metal" phenomenology. Keywords: superconductivity; non-Fermi liquid; quantum criticality
Date issued
2017-04Department
Massachusetts Institute of Technology. Department of PhysicsJournal
Proceedings of the National Academy of Sciences
Publisher
National Academy of Sciences (U.S.)
Citation
Lederer, Samuel et al. “Superconductivity and Non-Fermi Liquid Behavior Near a Nematic Quantum Critical Point.” Proceedings of the National Academy of Sciences 114, 19 (April 2017): 4905–4910 © 2017 National Academy of Sciences
Version: Final published version
ISSN
0027-8424
1091-6490