Landau level spectroscopy of valence bands in HgTe quantum wells: effects of symmetry lowering
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10401054" target="_blank" >RIV/00216208:11320/19:10401054 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=pBh7DkYJOR" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=pBh7DkYJOR</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1361-648X/aafdf0" target="_blank" >10.1088/1361-648X/aafdf0</a>
Alternative languages
Result language
angličtina
Original language name
Landau level spectroscopy of valence bands in HgTe quantum wells: effects of symmetry lowering
Original language description
The Landau level spectroscopy technique has been used to explore the electronic structure of the valence band in a series of p-type HgTe/HgCdTe quantum wells with both normal and inverted ordering of bands. We find that the standard axial-symmetric 4-band Kane model, which is nowadays widely applied in physics of HgTe-based topological materials, does not fully account for the complex magneto-optical response observed in our experiments-notably, for the unexpected avoided crossings of excitations and for the appearance of transitions that are electric-dipole forbidden within this model. Nevertheless, reasonable agreement with experiments is achieved when the standard model is expanded to include effects of bulk and interface inversion asynunetries. These remove the axial synunetry, and among other, profoundly modify the shape of valence bands.
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
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physics Condensed Matter
ISSN
0953-8984
e-ISSN
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Volume of the periodical
31
Issue of the periodical within the volume
14
Country of publishing house
GB - UNITED KINGDOM
Number of pages
13
Pages from-to
145501
UT code for WoS article
000458634500001
EID of the result in the Scopus database
2-s2.0-85061868936