Signature of Large-Gap Quantum Spin Hall State in the Layered Mineral Jacutingaite
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F20%3A00000113" target="_blank" >RIV/00025798:_____/20:00000113 - isvavai.cz</a>
Result on the web
<a href="https://dx.doi.org/10.1021/acs.nanolett.0c01499" target="_blank" >https://dx.doi.org/10.1021/acs.nanolett.0c01499</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.nanolett.0c01499" target="_blank" >10.1021/acs.nanolett.0c01499</a>
Alternative languages
Result language
angličtina
Original language name
Signature of Large-Gap Quantum Spin Hall State in the Layered Mineral Jacutingaite
Original language description
Quantum spin Hall (QSH) insulators host edge states,where the helical locking of spin and momentum suppressesbackscattering of charge carriers, promising applications from low-power electronics to quantum computing. A major challenge forapplications is the identification of large gap QSH materials, whichwould enable room temperature dissipationless transport in their edgestates. Here we show that the layered mineral jacutingaite (Pt2HgSe3)is a candidate QSH material, realizing the long sought-after Kane−Mele insulator. Using scanning tunneling microscopy, we measure aband gap in excess of 100 meV and identify the hallmark edge states.By calculating the2invariant, we confirm the topological nature ofthe gap. Jacutingaite is stable in air, and we demonstrate exfoliationdown to at least two layers and show that it can be integrated intoheterostructures with other two-dimensional materials. This adds a topological insulator to the 2D quantum material library.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
21001 - Nano-materials (production and properties)
Result continuities
Project
<a href="/en/project/GA18-15390S" target="_blank" >GA18-15390S: Experimental and mineralogical study of selected platinum-group chalcogenides and alloys</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nano Letters
ISSN
1530-6984
e-ISSN
—
Volume of the periodical
20
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
5207−5213
UT code for WoS article
000548893200067
EID of the result in the Scopus database
2-s2.0-85088208184