Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session A06: Beyond Fermi Liquid Theory
8:00 AM–10:48 AM,
Monday, March 4, 2019
BCEC
Room: 109A
Sponsoring
Unit:
DCMP
Chair: Peter Riseborough, Temple University
Abstract: A06.00002 : Lorentz ratio of a compensated metal*
8:12 AM–8:24 AM
Presenter:
Songci Li
(National High Magnetic Field Laboratory/University of Florida)
Authors:
Songci Li
(National High Magnetic Field Laboratory/University of Florida)
Dmitrii Maslov
(University of Florida)
We obtain the Lorentz ratio of a clean compensated metal with intercarrier interaction as the dominant scattering mechanism by solving exactly the system of coupled integral Boltzmann equations. The Lorentz ratio is shown to assume a particular simple form in the forward-scattering limit: L/L0=〈Θ2〉/2, where Θ is the scattering angle. In this limit, L/L0 can be arbitrarily small. We also show how the same result can be obtained without the benefit of an exact solution. We discuss how a strong downward violation of the Wiedemann-Franz law in a type-II Weyl semimetal WP2 can be explained within our model.
*Songci Li is a Dirac Post-Doctoral Fellow at the National High Magnetic Field Laboratory, which is supported by the National Science Foundation via Cooperative agreement No. DMR-1157490, the State of Florida, and the U.S. Department of Energy. Dmitrii L. Maslov acknowledges financial support from the National Science Foundation under grant NSF-DMR-1720816.
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