Multiphase superconductivity at the interface between ultrathin FeTe islands and Bi2Te3
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00598885" target="_blank" >RIV/68378271:_____/24:00598885 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/24:10483545
Result on the web
<a href="https://hdl.handle.net/11104/0356461" target="_blank" >https://hdl.handle.net/11104/0356461</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41699-024-00480-x" target="_blank" >10.1038/s41699-024-00480-x</a>
Alternative languages
Result language
angličtina
Original language name
Multiphase superconductivity at the interface between ultrathin FeTe islands and Bi2Te3
Original language description
FeTe monolayer islands situated on a topological insulator Bi2Te3 (0001) surface were recently reported to exhibit the opening of an energy gap below temperatures T ~ 6 K, which could be due to a superconducting phase transition. In this work, we present a magnetic field dependent transport study proving that this gap is indeed of superconducting origin. Upon cooling, several drops in resistance are observed in the temperature range between 6 K and 2 K, indicating multiple transitions. Using the Ginzburg-Landau theory, we show that the critical magnetic field of the dominant high-temperature transition at ~ 6 K is governed by orbital Cooper pair breaking in larger FeTe islands, large enough to exceed the superconductive coherence length (xi). At smaller island sizes, transitions at lower temperatures < 6 K become more prominent, showing significantly increased critical fields dominated by paramagnetic pair breaking.
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
npj 2D Materials and Applications
ISSN
2397-7132
e-ISSN
2397-7132
Volume of the periodical
8
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
52
UT code for WoS article
001287497200001
EID of the result in the Scopus database
2-s2.0-85200878221