Registration Number
0222U001429,
0120U000132
, R & D reports
Title
Quantum dynamics of quasiparticles occurred in hybrid metal nanostructures
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Head
Rudenko Eduard M,
Registration Date
27-01-2022
Organization
Institute of Metal Physics. G.V. Kurdyumov of the National Academy of Sciences of Ukraine
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The experimental data obtained in this work on the volt-ampere characteristics of the Josephson ferromagnet / superconductor-barrier-superconductor transitions confirmed the existence of the electromagnetic effect of proximity in the contacts of a superthin lead-superconductor film of the second kind with ferromagnetic nickel. A new Josephson transition with a periodic multilayer Ni / Al interlayer with a SQUID-like dependence of the critical current on the external magnetic field is proposed and implemented. The increased sensitivity of this device to the magnetic field compared to conventional superconductor-insulator-superconductor transitions has been demonstrated.
The superparamagnetic nature of the magnetic moment behavior of nanostructured TiN / Fe and TiN / Fe / C heterostructures has been established. The obtained results confirm the possibility of a significant increase in the anisotropy coefficient of iron in the nanostructured state to achieve the ultimate goal - to increase the density of magnetic recording. A method for measuring the integral thermal resistance of a complex system consisting of layered and film structures with different thermal and electrical conductivity of layers is proposed and developed. Based on Parker's express method for determining the thermophysical characteristics of such objects, an experimental model of an existing installation for estimating the integral thermal resistance of a multilayer system was developed and created. The electronic structures and magnetic properties of double perovskite oxides of Ca2-xMnxTi2O6, promising materials for use in heterogeneous multiferroics and photovoltaics, have been theoretically investigated using successive quantum mechanical calculations. The theoretically found instability of the Hubbard model at half charge suggests a possible mechanism for electron pairing.
Product Description
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Antonov Viktor М.
Belogolovskii Mykhaylo О.
Bekenov Lev V.
Bondar Yevgenii A.
Galstian Iryna Ye.
Gerasymov Oleksandr Yu.
Dʹyachenko Oleksandr І
Dyakin Maxim V.
Zhuravlʹov Borys А.
Zueva Nataliya O.
Zubov Eduard Ye.
Kalenyuk Oleksiy A.
Karbivska Liybov I.
Karbivskyy Volodymyr L.
Karnaukhov Ihor M.
Kasatkin Oleksandr L.
Kluenko Leonid P.
Kordiuk Oleksandr А.
Korotash Igor V.
Krakovny Anatoliy O
Kudryavtsev Yuriy V.
Kukusta Denys О.
Kurgan Nataliiya A.
Kucherenko Yuriy M.
Len Yevhen H
Mykhailova Halina Yu.
Moklyak Sergiy V.
Moskalyuk Vyacheslav О.
Mulenko Sergiy A.
Nikiforov Serhiy P.
Noskov Valeriy L.
Patoka Viktor I.
Perepelitsya Vitaliy K
Pogorelov Olexander E.
Polotskiy Denis Yu.
Reut Valentyna M.
Rudenko Eduard M.
Rudʹ Mykhaylo O.
Sereda Volodymyr P.
Smolyak Svitlana S.
Soboliev Oleksandr I.
Solomakha Dmytro О.
Stonis Viktor V.
Sulʹzhenko Valeriy К.
Uvarov Viktor М.
Uvarov Mykola V.
Tsapko Yevgen A.
Tsybrii Zinoviya F.
Shapovalov Andriy P.
Shevchenko Andriy B.
Shevchenko Mykola Y.
Shulyma Sergiy I.
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2022-03-09
