Collapse of Landau levels in graphene under uniaxial strain. (13th November 2019)

• Record Type: Journal Article
• Authors: Ghosh, P; Roy, P
• Is Part Of: Materials research express. Volume 6:Number 12(2019)
• Publication Date: 2019-11-13
• Subjects: collapse of Landau levels -- anisotropic 2D Dirac equation -- uniaxial strain; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/ab52ad
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: We examine the collapse of Landau levels in graphene under uniform uniaxial strain and in the presence of a pair of crossed homogeneous electric and magnetic fields. In particular, we obtain the Landau levels and examine their dependence on the strain ϵ . It is shown that the Landau levels collapse when the magnitude of the electric field E reaches a critical value E c whose magnitude can be increased (decreased) by applying the strain in the zigzag (armchair) direction. We also examine the phenomena in the presence of crossed inhomogeneous fields.