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Title: Electronic band structure of magnetic bilayer graphene superlattices

Electronic band structure of the bilayer graphene superlattices with δ-function magnetic barriers and zero average magnetic flux is studied within the four-band continuum model, using the transfer matrix method. The periodic magnetic potential effects on the zero-energy touching point between the lowest conduction and the highest valence minibands of pristine bilayer graphene are exactly analyzed. Magnetic potential is shown also to generate the finite-energy touching points between higher minibands at the edges of Brillouin zone. The positions of these points and the related dispersions are determined in the case of symmetric potentials.
Authors:
;  [1] ;  [2] ;  [1] ;  [3]
  1. Theoretical and Computational Physics Department, Institute of Physics, VAST, 10 Dao Tan, Ba Dinh Distr., Hanoi 10000 (Viet Nam)
  2. (Italy)
  3. (Viet Nam)
Publication Date:
OSTI Identifier:
22305705
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 116; Journal Issue: 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; BRILLOUIN ZONES; DISPERSIONS; ENERGY GAP; GRAPHENE; LAYERS; MAGNETIC FLUX; MAGNETIC PROPERTIES; NANOSTRUCTURES; PERIODICITY; SIMULATION; SUPERLATTICES; SYMMETRY; TRANSFER MATRIX METHOD