Quantum confinement effects in the topological Dirac semimetal α-Sn on InSb(111)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10508655" target="_blank" >RIV/00216208:11320/25:10508655 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=sfjfMUmb.x" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=sfjfMUmb.x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.matt.2025.102194" target="_blank" >10.1016/j.matt.2025.102194</a>
Alternative languages
Result language
angličtina
Original language name
Quantum confinement effects in the topological Dirac semimetal α-Sn on InSb(111)
Original language description
The diamond-like allotrope of Sn (alpha-Sn) is tantalizing, being an elemental semimetal that hosts a range of topological properties. Despite the intriguing potential of this quantum material, a detailed understanding of its nontrivial electronic structure remains relatively poor. Here, we prepared alpha-Sn in a well-defined quantum phase (i.e., topological Dirac semimetal) by applying a compressive strain via epitaxial growth on the (111) surface of an InSb substrate. We varied the thickness of the alpha-Sn epilayer to single out the emergence of quantum confinement effects. Our electrical investigation suggests a thickness-dependent modification of transport mechanisms. These results are complemented by the measurement of the cyclotron resonance, which manifests the role of quantum confinement in defining the effective mass of topological Dirac fermions as bulk carriers. Our results contribute to deepening the knowledge of the alpha-Sn electronic properties. This is pivotal to increase the future applicability of Sn-based architectures into beyond-stateof-the-art devices.
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
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Matter
ISSN
2590-2393
e-ISSN
2590-2385
Volume of the periodical
8
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
102194
UT code for WoS article
001568696900008
EID of the result in the Scopus database
2-s2.0-105006943911