Exchange gap in GdPtBi probed by magneto-optics
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10473332" target="_blank" >RIV/00216208:11320/23:10473332 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=-khlr73eUP" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=-khlr73eUP</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.108.L201201" target="_blank" >10.1103/PhysRevB.108.L201201</a>
Alternative languages
Result language
angličtina
Original language name
Exchange gap in GdPtBi probed by magneto-optics
Original language description
We measured the magneto-reflectivity spectra (4-90 meV, 0-16 T) of the triple-point semimetal GdPtBi and found them to demonstrate two unusual broad features emerging in field. The electronic bands of GdPtBi are expected to experience large exchange-mediated shifts, which lends itself to a description via effective Zeeman splittings with a large g factor. Based on this approach, along with an ab initio band structure analysis, we propose a model Hamiltonian that describes our observations well and allows us to estimate the effective g factor, g* = 95. We conclude that we directly observe the exchange-induced gamma(8) band inversion in GdPtBi by means of infrared spectroscopy.
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
2023
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
108
Issue of the periodical within the volume
20
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
L201201
UT code for WoS article
001112319600006
EID of the result in the Scopus database
2-s2.0-85180150999