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The Effect of Deformation Potential Magnetopolaron in Graphene

Authors
  • Yang, Hong-Tao1
  • Ji, Wen-Hui1
  • 1 Inner Mongolia Jining Normal University, Department of Physics, Wulanchabu, 012000, China , Wulanchabu (China)
Type
Published Article
Journal
Journal of Low Temperature Physics
Publisher
Springer US
Publication Date
Mar 06, 2015
Volume
179
Issue
5-6
Pages
291–297
Identifiers
DOI: 10.1007/s10909-015-1286-x
Source
Springer Nature
Keywords
License
Yellow

Abstract

The effects of a deformation potential on a magnetopolaron in monolayer graphene are investigated using the method of linear-combination operators and a simple unitary transformation based on the carrier–acoustic phonon coupling. We find that the splitting of the zero-energy Landau level occurs due to the magnetopolaron effect. The magnitude of splitting energy as functions of the magnetic field and the Debye cut-off wave number of acoustic phonon are discussed in the weak and strong coupling limit, respectively. The obtained results are meaningful for understanding the important role of carrier–phonon coupling in determining the fundamental properties of graphene.

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