Surface band characters of Weyl semimetal candidate material MoTe2 revealed by one-step angle-resolved photoemission theory
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00541766" target="_blank" >RIV/68378271:_____/21:00541766 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevB.103.125139" target="_blank" >https://doi.org/10.1103/PhysRevB.103.125139</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.103.125139" target="_blank" >10.1103/PhysRevB.103.125139</a>
Alternative languages
Result language
angličtina
Original language name
Surface band characters of Weyl semimetal candidate material MoTe2 revealed by one-step angle-resolved photoemission theory
Original language description
The layered MoTe2 in the Td phase is a semimetal, predicted to possess topologically non-trivial bands corresponding to Weyl fermions. Clear ARPES evidence is still lacking, which calls for a careful examination of the relation between ground state band structure calculations and ARPES intensity plots. We study the near Fermi-energy band structure of MoTe2(Td) by means of ARPES measurements, DFT, and one-step-model ARPES calculations. Agreement between theory and experiment is obtained. We analyse the orbital character of the surface bands and its relation to the ARPES polarization dependence. We find that light polarization has a major effect on which bands can be observed by ARPES. For s-polarized light, the ARPES intensity is dominated by subsurface Mo d orbitals, while p-polarized light reveals the bands composed mainly from Te p orbitals. Suitable light polarization for observing either electron or hole pocket are determined.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review B
ISSN
2469-9950
e-ISSN
2469-9969
Volume of the periodical
103
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
125139
UT code for WoS article
000646179600001
EID of the result in the Scopus database
2-s2.0-85104228208