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Registration Number

0213U007017, 0110U005704 , R & D reports

Title

The formation of magnetic and electronic properties of the carbon -metallic tube like films and supramolecular structures under laser irradiation and high pressure action.

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Head

Pashkevich Yurii Georgievich, Доктор фізико-математичних наук

Registration Date

21-03-2013

Organization

Dоnetsk Institute for Physics and Engineering named after O.O.Galkin of the NAS of Ukraine

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The structural and magnetic properties of nanostructured nickel nitride films were investigate. It is found that magnetron sputtering of nickel target in an argon atmosphere with a mixture of nitrogen is an effective method for the synthesis of nanostructured nickel nitride films on Ni phase to phase Ni2N. It is shown that at the increasing of the nitrogen concentration in the film the magnetization and Curie temperature gradually decreased during the transition from phase Ni (solid solution of nitrogen in nickel) to phase Ni4N. The optimum technological conditions (substrate temperature, power plasma atomic concentration ratio of Ni / N in obtained films) to obtain pure phases Ni3N Ni2N nanostructured nitride and nickel are determined. Under the modified semi-empirical theory of crystal field obtained spin diagrams for transition metal ions with electronic configurations 3d4, 3d5, 3d6 and contained in pyramidal environment. In spin diagrams revealed areas within which different spin states are mixed in equal proportions. The band structure calculations of and magnetic properties of nanowires with lateral dimensions of iron 9A were performed. The ab-initio calculations of the magnetic properties of chiral nanotubes encapsulated iron chain were carried out. The studies of optical and magnetic properties of layered cuprites of general formula Cu2 (OH) 2 (CnH2n 1CO2) * mH2O under pressure to 10kbar in the temperature range from room temperature to 4K were performed. It is shown that in the studied materials are better suited Ising model interactions in layers.

Product Description

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Букін Г.В.
Бутько В.Г.
Гусев О.А.
Лінник О.І.
Ламонова К.В.
Левченко Г.Г.
Прудніков А.М.
Ульянов О.Н.
Христов О.В.
Шалаєв Р.В.

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2020-04-02