http://dspace.nbuv.gov.ua:80/handle/123456789/114723 2026-04-20T18:13:21Z 2026-04-20T18:13:21Z Shalayev, R.V. Prudnikov, A.M. Kutrovskaya, S.V. Varyukhin, V.N. Linnik, A.I. Arakelian, S.M. http://dspace.nbuv.gov.ua:80/handle/123456789/120437 2017-06-13T00:02:42Z 2014-01-01T00:00:00Z

Structure and magnetic properties of Ni-N nanofilms Shalayev, R.V.; Prudnikov, A.M.; Kutrovskaya, S.V.; Varyukhin, V.N.; Linnik, A.I.; Arakelian, S.M. All range of nanostructured films of nickel nitrides is synthesized by the method of magnetron sputtering (from the phase of Ni and up to the phase of Ni₂N) and was investigated the change in the magnetic properties. We found out the globular structure of paramagnetic phases of Ni₃N and Ni₂N, and also the ferromagnetic behavior of Ni₄N phase is confirmed.

2014-01-01T00:00:00Z Kharko, O.V. Vasylechko, L.O. Ubizskii, S.B. Pashuk, A. Prots, Yu. http://dspace.nbuv.gov.ua:80/handle/123456789/120436 2017-06-13T00:02:40Z 2014-01-01T00:00:00Z

Structural behaviour of continuous solid solution SmCo₁₋xFexO₃ Kharko, O.V.; Vasylechko, L.O.; Ubizskii, S.B.; Pashuk, A.; Prots, Yu. Phase and structural behaviour in the SmCoO₃-SmFeO₃ pseudobinary system has been investigated at the ambient conditions in a whole concentration range by means of X-ray powder diffraction technique applied laboratory and synchrotron radiation sources. Series of mixed samarium cobaltites-ferrites SmCo₁₋xFexO₃ was obtained by the solid state reaction in air at 1573 K. Formation of a continuous solid solution SmCo₁₋xFexO₃ with orthorhombic perovskite structure (GdFeO₃ type, space group Pbnm) has been revealed. Crystal structure parameters of the mixed samarium cobaltites-ferrites, as well as nominally pure SmCoO₃ and SmFeO₃ have been established by full profile Rietveld refinement. Based on the analysis of structural parameters, an influence of the cation substitution on the deformation of the orthorhombic perovskite structure in the SmCo₁₋xFexO₃ series has been established.

2014-01-01T00:00:00Z Fediv, V.I. Rudko, G.Yu. Savchuk, A.I. Gule, E.G. Davydenko, I.S. http://dspace.nbuv.gov.ua:80/handle/123456789/120432 2017-06-13T00:02:39Z 2014-01-01T00:00:00Z

Synthesis of colloidal nanoparticles CdS:Mn in the polymer solution for biological applications Fediv, V.I.; Rudko, G.Yu.; Savchuk, A.I.; Gule, E.G.; Davydenko, I.S. Kinetics of the colloidal CdS:Mn nanoparticles synthesis in the solutions of polyvinyl pirrolidone and mixture of polyvinyl pirrolidone with polyvinyl alcohol is studied by optical absorption method. The dependences of NPs size, polydispersity index and concentration of NPs on the precursors concentration in the growth solution are studied. The factors that affect the characteristics of colloidal nanoparticles are analyzed. It is shown that growing in the mixture of macromolecules improves the synthesis kinetics and provides stabilization of the average nanoparticles size in wide range of precursors concentration. The possibility to use the colloidal solutions polymer/nano-CdS:Mn as light-emitting labels in whole blood was demonstrated.

2014-01-01T00:00:00Z Kanishchev, V.M. Semynozhenko, V.P. http://dspace.nbuv.gov.ua:80/handle/123456789/120430 2017-06-13T00:02:38Z 2014-01-01T00:00:00Z

On phase trajectory of dynamic system "directionally crystallized binary melt" Kanishchev, V.M.; Semynozhenko, V.P. The origin of return and self-crossing points on the parametrically specified curves of crystallization rate vs. impurities concentration at the interface during pulling a crystal from a binary melt at constant rate in the initial transitional stage has been explained.

2014-01-01T00:00:00Z