Article (Scientific journals)
Network model for periodically strained graphene
De Beule, Christophe; Võ Tiến, Phong; Mele, Eugene John
2023In Physical Review. B, 107, p. 045405
Peer Reviewed verified by ORBi
 

Files


Full Text
main.pdf
Author preprint (2.05 MB)
Download

All documents in ORBilu are protected by a user license.

Send to



Details



Abstract :
[en] The long-wavelength physics of monolayer graphene in the presence of periodic strain fields has a natural chiral scattering network description. When the strain field varies slowly compared to the graphene lattice and the effective magnetic length of the induced valley pseudomagnetic field, the low-energy physics can be understood in terms of valley-polarized percolating domain-wall modes. Inspired by a recent experiment, we consider a strain field with threefold rotation and mirror sym- metries but without twofold rotation symmetry, resulting in a system with the connectivity of the oriented kagome network. Scattering processes in this network are captured by a symmetry- constrained phenomenological S matrix. We analyze the phase diagram of the kagome network, and show that the bulk physics of the strained graphene can be qualitatively captured by the network when we account for a percolation transition at charge neutrality. We also discuss the limitations of this approach to properly account for boundary physics.
Disciplines :
Physics
Author, co-author :
De Beule, Christophe ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS) ; University of Pennsylvania - Penn > Physics and Astronomy
Võ Tiến, Phong;  University of Pennsylvania - Penn > Physics and Astronomy
Mele, Eugene John;  University of Pennsylvania - Penn > Physics and Astronomy
External co-authors :
yes
Language :
English
Title :
Network model for periodically strained graphene
Publication date :
05 January 2023
Journal title :
Physical Review. B
ISSN :
2469-9969
Publisher :
American Physical Society, College Park, United States - Maryland
Volume :
107
Pages :
045405
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Physics and Materials Science
FnR Project :
FNR16515716 - Electronic States And Responses In Moiré Heterostructures, 2021 (14/03/2022-13/03/2023) - Christophe De Beule
Available on ORBilu :
since 14 December 2022

Statistics


Number of views
44 (1 by Unilu)
Number of downloads
21 (0 by Unilu)

Scopus citations®
 
3
Scopus citations®
without self-citations
2
WoS citations
 
2

Bibliography


Similar publications



Contact ORBilu