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Information × Registration Number 0207U005347, 0105U001280 , R & D reports Title Self-organising phenomena in the magetic and magnetoelastic crystals popup.stage_title Head Gomonay Olena Vasylivna, Registration Date 03-04-2007 Organization National technical University of Ukraine "Kyiv Politechnical Institute" popup.description2 We study the processes of formation and restructurization of equilibrium homogeneous and inhomogeneous magnetic structure in the differents types of materials, namely, antiferromagnets, ferromagentic martensites, multylayers including materials with different magnetic properties, molecular crystals. We developed phenomenological theory for descirption of magnetoelastic properties of the materials with large spontaneous deformations that arise in the course of phase transformation and apply it for the description of antiferromagnets. In particular, we analyse possible shape effects in antiferromagnetic crytals. We developed further Landau-type theory for the description of sequance of phase transitions between the magnetic phases of soid oxygen. We study both theoretically and experimentally magnetization curves of the monocrystalline ferromagnetic martensites for different directions of the external magentic field and analyse the field-induced shift of the transition temperature. We study the structure and properties of small particles of Ti-Ni-Zr-Cu and Ni-Mn-Ga powders produced by spark erosion in cryogenic liquid Product Description popup.authors popup.nrat_date 2020-04-02 Close