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@ARTICLE{Cysne:1005285,
author = {Cysne, Tarik P. and Guimarães, Filipe S. M. and Canonico,
Luis M. and Costa, Marcio and Rappoport, Tatiana G. and
Muniz, R. B.},
title = {{O}rbital magnetoelectric effect in nanoribbons of
transition metal dichalcogenides},
journal = {Physical review / B},
volume = {107},
number = {11},
issn = {2469-9950},
address = {Woodbury, NY},
publisher = {Inst.},
reportid = {FZJ-2023-01400},
pages = {115402},
year = {2023},
abstract = {The orbital magnetoelectric effect (OME) generically refers
to the appearance of an orbital magnetization induced by an
applied electric field. Here, we show that nanoribbons of
transition metal dichalcogenides (TMDs) with zigzag edges
may exhibit a sizable OME activated by an electric field
applied along the ribbons' axis. We examine nanoribbons
extracted from a monolayer (1L) and a bilayer (2L) of MoS2
in the trigonal structural phase. Transverse profiles of the
induced orbital angular momentum accumulations are
calculated to first order in the longitudinally applied
electric field. Our results show that close to the
nanoribbon's edge-state crossings energy, the orbital
angular momentum accumulations take place mainly around the
ribbons' edges. They have two contributions: one arising
from the orbital Hall effect (OHE) and the other consisting
in the OME. The former is transversely antisymmetric with
respect to the principal axis of the nanoribbon, whereas the
latter is symmetric and hence responsible for the resultant
orbital magnetization induced in the system. We found that
the orbital accumulation originating from the OHE for the 1L
nanoribbon is approximately half that of a 2L nanoribbon.
Furthermore, while the OME can reach fairly high values in
1L-TMD nanoribbons, it vanishes in the 2L ones that preserve
spatial inversion symmetry. The microscopic features that
justify our findings are also discussed.},
cin = {JSC},
ddc = {530},
cid = {I:(DE-Juel1)JSC-20090406},
pnm = {5112 - Cross-Domain Algorithms, Tools, Methods Labs (ATMLs)
and Research Groups (POF4-511) / ATMLAO - ATML Application
Optimization and User Service Tools (ATMLAO)},
pid = {G:(DE-HGF)POF4-5112 / G:(DE-Juel-1)ATMLAO},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000945908500003},
doi = {10.1103/PhysRevB.107.115402},
url = {https://juser.fz-juelich.de/record/1005285},
}