Article (Scientific journals)
Quantum Interference Effects in Resonant Raman Spectroscopy of Single- and Triple-Layer MoTe2 from First-Principles
Pereira Coutada Miranda, Henrique; Reichardt, Sven; Froehlicher, Guillaume et al.
2017In Nano Letters, 17 (4), p. 2381--2388
Peer Reviewed verified by ORBi
 

Files


Full Text
Miranda_2017_NanoLett_17_2381.pdf
Publisher postprint (2.79 MB)
Request a copy

All documents in ORBilu are protected by a user license.

Send to



Details



Keywords :
resonant Raman spectroscopy; transition metal dichalcogenides; electron-phonon interaction; ab-initio calculations; two-dimensional materials; excitonic effects
Abstract :
[en] We present a combined experimental and theoretical study of resonant Raman spectroscopy in single- and triple-layer MoTe2. Raman intensities are computed entirely from first-principles by calculating finite differences of the dielectric susceptibility. In our analysis, we investigate the role of quantum interference effects and the electron−phonon coupling. With this method, we explain the experimentally observed intensity inversion of the A′1 vibrational modes in triple-layer MoTe2 with increasing laser photon energy. Finally, we show that a quantitative comparison with experimental data requires the proper inclusion of excitonic effects.
Disciplines :
Physics
Author, co-author :
Pereira Coutada Miranda, Henrique ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Reichardt, Sven ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Froehlicher, Guillaume
Molina-Sanchez, Alejandro ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Berciaud, Stéphane
Wirtz, Ludger ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
External co-authors :
yes
Language :
English
Title :
Quantum Interference Effects in Resonant Raman Spectroscopy of Single- and Triple-Layer MoTe2 from First-Principles
Publication date :
15 February 2017
Journal title :
Nano Letters
ISSN :
1530-6992
Publisher :
American Chemical Society, Washington, United States - District of Columbia
Volume :
17
Issue :
4
Pages :
2381--2388
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Physics and Materials Science
FnR Project :
FNR6010221 - Optical And Transport Properties Of Mos2 In The Presence Of Defects, 2013 (01/10/2013-30/09/2017) - Henrique Miranda
Available on ORBilu :
since 23 May 2017

Statistics


Number of views
121 (20 by Unilu)
Number of downloads
1 (1 by Unilu)

Scopus citations®
 
36
Scopus citations®
without self-citations
27
OpenCitations
 
36
WoS citations
 
34

Bibliography


Similar publications



Contact ORBilu