Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session B07: Non-Fermi Liquid Transport
11:30 AM–1:54 PM,
Monday, March 4, 2024
Room: L100H
Sponsoring
Unit:
DCMP
Chair: Elio König, Max-Planck-Institute for Solid State Research
Abstract: B07.00009 : Non-linear responses of strange metals
1:06 PM–1:18 PM
Presenter:
Serhii Kryhin
(Harvard University)
Authors:
Serhii Kryhin
(Harvard University)
Pavel A Volkov
(University of Connecticut)
Subir Sachdev
(Harvard University)
Understanding the behavior and properties of strange metals remains an outstanding challenge in correlated electron systems. Recently, a model of a quantum critical metal with spatially random couplings [reference Guo, Patel, Esterlis, Sachdev] has been shown to capture the linear in T resistivity down to zero temperature - one of the universal experimental signatures of strange metals. In our work we explore the non-linear transport properties of such a model of strange metal.
Uniting the large-N and Keldysh field theory formalisms we derive a set of kinetic equations for the strange metal and use it to compute nonlinear conductivity.
We find that the third-order conductivity is pronouncedly enhanced in comparison to a Fermi liquid expectation and displays a strong temperature dependence. We attribute this behavior to the strong, non-analytic energy dependence of scattering rate and self-energies for electrons. Additionally, we employ our new formalism to explore the impacts of the external relaxation of the critical boson energy on the fermion dynamics and discuss the bosonic mode drag.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700