---
_id: '10024'
abstract:
- lang: eng
text: The influence of electronic many-body interactions, spin-orbit coupling, and
thermal lattice vibrations on the electronic structure of lithium niobate is calculated
from first principles. Self-energy calculations in the GW approximation show that
the inclusion of self-consistency in the Green function G and the screened Coulomb
potential W opens the band gap far stronger than found in previous G0W0 calculations
but slightly overestimates its actual value due to the neglect of excitonic effects
in W. A realistic frozen-lattice band gap of about 5.9 eV is obtained by combining
hybrid density functional theory with the QSGW0 scheme. The renormalization of
the band gap due to electron-phonon coupling, derived here using molecular dynamics
as well as density functional perturbation theory, reduces this value by about
0.5 eV at room temperature. Spin-orbit coupling does not noticeably modify the
fundamental gap but gives rise to a Rashba-like spin texture in the conduction
band.
article_number: '075205'
article_type: original
author:
- first_name: Arthur
full_name: Riefer, Arthur
last_name: Riefer
- first_name: Michael
full_name: Friedrich, Michael
last_name: Friedrich
- first_name: Simone
full_name: Sanna, Simone
last_name: Sanna
- first_name: Uwe
full_name: Gerstmann, Uwe
id: '171'
last_name: Gerstmann
- first_name: Arno
full_name: Schindlmayr, Arno
id: '458'
last_name: Schindlmayr
orcid: 0000-0002-4855-071X
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
citation:
ama: 'Riefer A, Friedrich M, Sanna S, Gerstmann U, Schindlmayr A, Schmidt WG. LiNbO3
electronic structure: Many-body interactions, spin-orbit coupling, and thermal
effects. Physical Review B. 2016;93(7). doi:10.1103/PhysRevB.93.075205'
apa: 'Riefer, A., Friedrich, M., Sanna, S., Gerstmann, U., Schindlmayr, A., &
Schmidt, W. G. (2016). LiNbO3 electronic structure: Many-body interactions, spin-orbit
coupling, and thermal effects. Physical Review B, 93(7). https://doi.org/10.1103/PhysRevB.93.075205'
bibtex: '@article{Riefer_Friedrich_Sanna_Gerstmann_Schindlmayr_Schmidt_2016, title={LiNbO3
electronic structure: Many-body interactions, spin-orbit coupling, and thermal
effects}, volume={93}, DOI={10.1103/PhysRevB.93.075205},
number={7075205}, journal={Physical Review B}, publisher={American Physical Society},
author={Riefer, Arthur and Friedrich, Michael and Sanna, Simone and Gerstmann,
Uwe and Schindlmayr, Arno and Schmidt, Wolf Gero}, year={2016} }'
chicago: 'Riefer, Arthur, Michael Friedrich, Simone Sanna, Uwe Gerstmann, Arno Schindlmayr,
and Wolf Gero Schmidt. “LiNbO3 Electronic Structure: Many-Body Interactions, Spin-Orbit
Coupling, and Thermal Effects.” Physical Review B 93, no. 7 (2016). https://doi.org/10.1103/PhysRevB.93.075205.'
ieee: 'A. Riefer, M. Friedrich, S. Sanna, U. Gerstmann, A. Schindlmayr, and W. G.
Schmidt, “LiNbO3 electronic structure: Many-body interactions, spin-orbit coupling,
and thermal effects,” Physical Review B, vol. 93, no. 7, 2016.'
mla: 'Riefer, Arthur, et al. “LiNbO3 Electronic Structure: Many-Body Interactions,
Spin-Orbit Coupling, and Thermal Effects.” Physical Review B, vol. 93,
no. 7, 075205, American Physical Society, 2016, doi:10.1103/PhysRevB.93.075205.'
short: A. Riefer, M. Friedrich, S. Sanna, U. Gerstmann, A. Schindlmayr, W.G. Schmidt,
Physical Review B 93 (2016).
date_created: 2019-05-29T07:50:59Z
date_updated: 2022-01-06T06:50:26Z
ddc:
- '530'
department:
- _id: '295'
- _id: '296'
- _id: '230'
- _id: '429'
doi: 10.1103/PhysRevB.93.075205
external_id:
isi:
- '000370794800004'
file:
- access_level: open_access
content_type: application/pdf
creator: schindlm
date_created: 2020-08-27T20:36:43Z
date_updated: 2020-08-30T14:39:23Z
description: © 2016 American Physical Society
file_id: '18469'
file_name: PhysRevB.93.075205.pdf
file_size: 1314637
relation: main_file
title: 'LiNbO3 electronic structure: Many-body interactions, spin-orbit coupling,
and thermal effects'
file_date_updated: 2020-08-30T14:39:23Z
has_accepted_license: '1'
intvolume: ' 93'
isi: '1'
issue: '7'
language:
- iso: eng
oa: '1'
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '53'
name: TRR 142
- _id: '55'
name: TRR 142 - Project Area B
- _id: '69'
name: TRR 142 - Subproject B4
publication: Physical Review B
publication_identifier:
eissn:
- 2469-9969
issn:
- 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: 'LiNbO3 electronic structure: Many-body interactions, spin-orbit coupling,
and thermal effects'
type: journal_article
user_id: '458'
volume: 93
year: '2016'
...