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Information × Registration Number 0226U001754, (0122U001886) , R & D reports Title Physical bases of creation of materials with controlled magnetostructural and thermodynamic characteristics popup.stage_title Дослідження зміни магнітних та термодинамічних характеристик сплавів з магнітоструктурними фазовими переходами за наявності механічних та електричних полів. Head Kosohor Anna O., Доктор фізико-математичних наукKrupa Mykola M., Доктор фізико-математичних наук Registration Date 30-01-2026 Organization Institute of Magnetism NAS of Ukraine and MES of Ukraine popup.description1 The aim of this project is the theoretical and experimental study of the magnetic and magnetocaloric properties of materials with magnetostructural phase transition and nanostructures based on them and to provide recommendations for the creation and practical application of new magnetic materials. popup.description2 At this stage of the work, it was established that the shape and dimensions of individual elements of epitaxial Ni-Mn-Ga films affect the internal stress relaxation in the films, which leads to an increase in the martensitic transformation temperature with a decrease in the transverse size. Modeling and numerical calculations showed that the relaxation of internal stresses significantly affects the phase transformation only when the width of individual film elements d is small, comparable to the thickness of the strips h d<0.1h. It is shown that magnetic tunnel junctions (MTJ) are promising basic elements for creating magnetic information carriers. A mechanism is proposed to explain the change in the value of tunnel magnetoresistance (TMR) and tunnel magnetic capacitance (TMC) in MTJs with perpendicular magnetic anisotropy of the electrodes. In the Tb22Co5Fe73/Pr6O11/Tb19-Co5Fe76 MTJ with perpendicular magnetic anisotropy of the electrodes, when the contacts were magnetized, the TMR value reached 120%, and the TMC value reached 110%. Within the framework of the Landau-Lifshitz-Hilbert model, a theory of low-dissipative high-speed resonant magnetization reversal in pulsed electric fields based on the effect of electrically controlled magnetic anisotropy has been developed. The features of electrically controlled excitation of coherent spin waves in magnetic nanostructures have been considered. This can be used in the development of low-dissipative methods of information transmission in magnetic nanosystems. Product Description popup.authors Serhii M. Konopliuk Andrii-Volodymyr M. Korostil Oleksii V. Pashchenko Victor A. L'vov Dmytro O. Derecha Anatolii M. Titenko Larysa Y. Kozlova Lidiia I. Ushii Viktor I. Hrebynakha Olha Y. Saliuk Yurii M. Troshchenkov popup.nrat_date 2026-01-30 Close