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Information × Registration Number 0213U001382, 0112U004334 , R & D reports Title Influence of magnetoelectric and thermobaric effects on the systems with strong electronic correlations. popup.stage_title Head Valkov Victor Ivanovich, Registration Date 31-01-2013 Organization A.A. Galkin Physics and Engineering Institute of National Academy of Science of the Ukraine popup.description2 Clarifying theoretical studies of the magnetocaloric systems MnFeAsyP(1-y) and Mn(2-x)FexAs0.5P0.5 are conducted on the basis of first-principles calculations of the spin-polarized electronic structure and model-based approach in order to determine the causes of different way of formation of magnetically ordered phases in the anion and cation substitution in systems MnFeAsyP(1-y) and Mn(2-x)FexAs0.5P0.5. It is shown that changing of the type of magnetically ordered state in the system with cation substitution Mn(2-x)FexAs0.5P0.5 with decreasing concentrations of iron caused a significant decrease in electronic filling d-zone. AF phase stabilization at reducing concentration of arsenic in the system with an anionic substitution MnFeAsyP(1-y) with increasing concentrations of phosphorus against the conservation population of d-zone may be the result of expansion of the electron density of states, due to a decrease in volume of the unit cell. These results are important in terms of new knowledge in the field of the physics of magnetic phenomena. Product Description popup.authors Головчан Олексій Віталійович Грибанов Ігор Федорович Дворніков Євген Олександрович Каменєв Віктор Іванович Сіваченко Олександр Павлович Сиваченко Тетяна Сергіївна Тодрис Борис Михайлович popup.nrat_date 2020-04-02 Close