Strain-induced chiral magnetic effect in Weyl semimetals
Journal Article
·
· Physical Review. B
- Institute of Materials Science of Madrid (Spain)
- Stony Brook Univ., NY (United States). Dept. of Physics and Astronomy; Brookhaven National Lab. (BNL), Upton, NY (United States). Department of Physics and RIKEN-BNL Research Center
- Institute of Theoretical Physics UAM/CSIC, Madrid (Spain)
Here, we argue that strain applied to a time-reversal and inversion breaking Weyl semimetal in a magnetic field can induce an electric current via the chiral magnetic effect. A tight-binding model is used to show that strain generically changes the locations in the Brillouin zone but also the energies of the band touching points (tips of the Weyl cones). Since axial charge in a Weyl semimetal can relax via intervalley scattering processes, the induced current will decay with a time scale given by the lifetime of a chiral quasiparticle. Lastly, we estimate the strength and lifetime of the current for typical material parameters and find that it should be experimentally observable.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- Grant/Contract Number:
- SC0012704; FG02-88ER40388; AC02-98CH10886; FG- 88ER40388
- OSTI ID:
- 1376105
- Alternate ID(s):
- OSTI ID: 1336859
- Report Number(s):
- BNL-113962-2017-JA; KB0301020; TRN: US1702677
- Journal Information:
- Physical Review. B, Vol. 94, Issue 24; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 96 works
Citation information provided by
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