Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/103338
Title: Origin of the vortex displacement field in twisted bilayer graphene
Authors: Gornostyrev, Y. N.
Katsnelson, M. I.
Issue Date: 2020
Publisher: American Physical Society
Citation: Gornostyrev Y. N. Origin of the vortex displacement field in twisted bilayer graphene / Y. N. Gornostyrev, M. I. Katsnelson. — DOI 10.1103/PhysRevB.102.085428 // Physical Review B. — 2020. — Vol. 102. — Iss. 8. — 085428.
Abstract: A model description of patterns of atomic displacements in twisted bilayer systems has been proposed. The model is based on the consideration of several dislocation ensembles, employing a language that is widely used for grain boundaries and film/substrate systems. We demonstrate explicitly how the dislocation language relates to vortex lattice motives found in experiment and simulations. We show that three ensembles of parallel screw dislocations are sufficient both to describe the rotation of the layers as a whole, and for the vortexlike displacements resulting from elastic relaxation. The results give a clear explanation of the observed features of the structural state such as vortices, accompanied by alternating stacking. © 2020 American Physical Society.
Keywords: GRAIN BOUNDARIES
SCREW DISLOCATIONS
SUPERCONDUCTING MATERIALS
ATOMIC DISPLACEMENT
DISLOCATION ENSEMBLES
ELASTIC RELAXATION
MODEL DESCRIPTION
STRUCTURAL STATE
TWISTED BILAYERS
VORTEX DISPLACEMENTS
VORTEX LATTICES
VORTEX FLOW
URI: http://hdl.handle.net/10995/103338
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85096157337
PURE ID: 13931865
ISSN: 24699950
DOI: 10.1103/PhysRevB.102.085428
metadata.dc.description.sponsorship: This work of M.I.K. was supported by the JTC-FLAGERA Project GRANSPORT and the work of Y.N.G. was financed by the Russian Ministry of Education and Science (topic “Structure” A18-118020190116-6).
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

Files in This Item:
File Description SizeFormat 
2-s2.0-85096157337.pdf4,14 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.