Registration Number
0223U002666,
0122U001382
, R & D reports
Title
Interface superconductivity: search for new materials, properties and applications
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Head
Kordiuk Oleksandr A., Доктор фізико-математичних наук
Registration Date
01-03-2023
Organization
Institute of Metal Physics. G.V. Kurdyumov of the National Academy of Sciences of Ukraine
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A comprehensive study of the phenomenon of superconductivity enhancement in ultrathin single-crystal films and doped surfaces was conducted, namely: sputtering of single-crystal monolayer and ultrathin FeSe films; study of the electronic structure and morphology of monolayer and ultrathin FeSe films; sputtering and experimental and theoretical studies of the structure of other model monolayers and quasi-two-dimensional crystals. Attempts were also made to realize the effect of enhancing superconductivity in the microcontact region on the surface of topological materials and to investigate its connection with the electronic structure.
In order to find topological superconductors, the electronic structure of a number of compounds, namely TiTe2, BiTeI, Bi2Te3, ZrTe3, (Pb,Bi)2Sr2CaCu2O8+δ and LiFeAs, was experimentally investigated using a new experimental method of "Fermi-surface tomography", which allows obtaining images of surfaces Real-time Fermi of metal compounds and their high-resolution 3D mapping. The general conclusion of these studies was the selection of van der Waals materials as the most promising for the simultaneous realization of superconducting and topological states. However, studies have also revealed systematic discrepancies between the experimental and calculated electronic band structures of these materials. Therefore, the calculation methods were improved within the framework of the density functional theory using the generalized gradient approximation taking into account strong Coulomb correlations within the framework of the fully relativistic spin-polarized method of the Muffin-tin Dirac linear orbital band structure.
Product Description
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Ilinskaya Olga O.
Antonov Viktor M.
Bezghuba Volodymyr V
Bekenov Lev V.
Boliasova Olha O.
Havrysh Ivan H
Dumik Andrii Ol
Dukhnevych Mykolay M
Zaika Volodymyr V
Zuyeva Nataliya O
Kalenyuk Oleksiy A.
Karbivska Liybov I.
Karbivskyy Volodymyr Leonidovich
Kasatkin Oleksandr L
Klimov Vladimir V.
Kluenko Leonid P.
Koval'chuk Halina
Kozyreva Yulija I
Kukusta Denys О.
Kurgan Nataliiya A.
Kucherenko Yuriy N.
Lyakhno Valery Yurevich
Mishchenko Evgen
Mazur Dmytro V.
Makivs'ka Valentyna
Makivsʹkyy Oleksandr V
Martynenko Igor A
Matsuy Volodymyr I
Melnik Maxim P.
Moklyak Sergiy V.
Moskalyuk Vyacheslav О.
Plustchai Oleksandr I
Romanenko Valentin
Smolyak Svitlana S.
Sobolev Oleh I
Stonis Viktor V.
Tarenkov Volodymyr Yu
Teush Kim
Uvarov Mykola V.
Flis Viktor S
Futimsky Serhii I.
Tsvetkovskii Vadym P.
Shapovalov Andrii P.
Shaternik Volodymyr E
Shvachko Nazar K
Shnurkov Volodymyr I.
Shulyma Sergiy I.
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2023-03-01
