Pseudomagnetic helicons

E. V. Gorbar, V. A. Miransky, Igor Shovkovy, P. O. Sukhachov

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The existence of pseudomagnetic helicons is predicted for strained Dirac and Weyl materials. The corresponding collective modes are reminiscent of the usual helicons in metals in strong magnetic fields but can exist even without a magnetic field due to a strain-induced background pseudomagnetic field. The properties of both pseudomagnetic and magnetic helicons are investigated in Weyl matter using the formalism of the consistent chiral kinetic theory. It is argued that the helicon dispersion relations are affected by the electric and chiral chemical potentials, the chiral shift, and the energy separation between the Weyl nodes. The effects of multiple pairs of Weyl nodes are also discussed. A simple setup for experimental detection of pseudomagnetic helicons is proposed.

Original languageEnglish (US)
Article number115422
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume95
Issue number11
DOIs
StatePublished - Mar 20 2017

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Helicons
kinetic theory
magnetic fields
formalism
shift
Magnetic fields
Kinetic theory
metals
Chemical potential
Metals
energy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Pseudomagnetic helicons. / Gorbar, E. V.; Miransky, V. A.; Shovkovy, Igor; Sukhachov, P. O.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 95, No. 11, 115422, 20.03.2017.

Research output: Contribution to journalArticle

Gorbar, E. V. ; Miransky, V. A. ; Shovkovy, Igor ; Sukhachov, P. O. / Pseudomagnetic helicons. In: Physical Review B - Condensed Matter and Materials Physics. 2017 ; Vol. 95, No. 11.
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