Article (Scientific journals)
Thermoelectric properties of Mexican-hat band structures
Nurhuda, M; Nugraha, ART; Hanna, MY et al.
2020In Advances in Natural Sciences: Nanoscience and Nanotechnology, 11 (1), p. 015012
Peer Reviewed verified by ORBi
 

Files


Full Text
2020-mexican-hat-only.pdf
Publisher postprint (369.21 kB)
Request a copy

All documents in ORBilu are protected by a user license.

Send to



Details



Keywords :
Thermoelectrics; 2D materials; Flat bands
Abstract :
[en] Materials with Mexican-hat electronic energy dispersions emerging from heterostructures, substrate effects, or spin–orbit couplings are believed to exhibit excellent thermoelectric properties due to its van Hove singularity of density of states in two-dimension. However, within a constant relaxation time approximation, we disprove this belief and we find that the singularity effect is cancelled down by the group velocity contribution in the thermoelectric transport distribution. Nevertheless, the band parameters can still be optimised to reach thermoelectric figure of merit larger than 2 in a wide bandwidth, thus keeping the potential of materials with Mexican-hat bands for thermoelectric applications.
Disciplines :
Physics
Physics
Author, co-author :
Nurhuda, M
Nugraha, ART
Hanna, MY
Suprayoga, E
Hasdeo, Eddwi Hesky  ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS)
External co-authors :
yes
Language :
English
Title :
Thermoelectric properties of Mexican-hat band structures
Publication date :
20 February 2020
Journal title :
Advances in Natural Sciences: Nanoscience and Nanotechnology
ISSN :
2043-6262
Publisher :
IOP Publishing, United Kingdom
Volume :
11
Issue :
1
Pages :
015012
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Physics and Materials Science
Available on ORBilu :
since 18 January 2021

Statistics


Number of views
54 (2 by Unilu)
Number of downloads
0 (0 by Unilu)

Scopus citations®
 
6
Scopus citations®
without self-citations
5
OpenCitations
 
3
WoS citations
 
6

Bibliography


Similar publications



Contact ORBilu