Registration Number
0126U001083,
R & D request
Title
A comprehensive investigation into the effects of martensitic transitions on cooperative phenomena and transport processes in fluxon–magnon heterostructures
Head
Ruslan Vovk, Доктор фізико-математичних наук
Registration Date
30-01-2026
Organization
Karazin University
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In particular, the project focuses on modifying the structural and physical properties of fluxon–magnon heterostructures via radiation treatment using glow-discharge plasma and irradiation with inert gas ions (He, Ne, Ar). These ions are typically electrically inactive as impurities; therefore, changes in material properties induced by their implantation are governed by the formation of intrinsic defects during ion deceleration, such as vacancies, interstitial atoms, antisite defects, and other defect complexes.
Comprehensive structural and magnetotransport studies of the physical properties of these heterostructures are also planned.
At present, for superconducting niobium films with washboard-type pinning nanostructures, the possibilities of employing such structures in specific fluxonic devices have been identified and discussed, including high-frequency rectifiers, frequency converters, pulse generators, and stochastic amplifiers. For the high-frequency rectifier, the operating parameter window has been analyzed and the requirements for input signals have been formulated.
The fabrication of washboard-type pinning nanostructures on HTS cuprates with a predefined topology of pinning centers combined with the deposition of classical ferromagnetic materials will enable the creation of a wide range of more cost-effective and practically applicable fluxon–magnon heterostructures.
Control of the topology of martensitic transformations and its evolution under the influence of external factors will be achieved using magnetoresistive techniques as well as optical and electron microscopy methods.
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2026-01-30
