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Information × Registration Number 0305U003376, 0103U004219 , R & D reports Title Influence of fundamental interactions on the properties of macro- and nanocrystals of the polisublattice ferrimagnets popup.stage_title Резонансні дослідження монокристалів та нанокристалічних систем Head Kuntsevich S P, Registration Date 25-03-2005 Organization Kharkov national university named after V.N. Karazin popup.description2 The object of the research is hexagonal ferrites of M structure type and of other types as monocrystals and also nano- and microcrystal powder. The aim of the research is definition of the local NMR characteristics of Fe(3+) ions of monocrystal models of M type haxaferrites, enriched with 57Fe isotope. The methods of the research are magnetic resonance (NMR, T=77-295 K, H < 22 kOe). The method of spinal echo and stationary method helped to research the influence of external magnetic field and the temperature changes at local magnetic field of the iron nucleus in barium ferrite. It is shown that if model of sphere form is magnetised by means of domain walls displacement demagnetising field compensate external magnetic field completely. According to the experimental results, the quantity estimation of the magnetic ferrite BaFe12O19 (BaM) permeability on the direction of light magnetisation. The research of local fields temperature changes on iron nuclear in barium hexaferrit have shown that if temperature is low, the magnetisation of sublattices changes according to the temperature changes with deviation from the Bloch Law. Product Description popup.authors popup.nrat_date 2020-04-02 Close