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Information × Registration Number 0207U000121, 0102U001251 , R & D reports Title New generation of materials based on the incipient ferroelectrics for use at cryogenic temperatures popup.stage_title Head Glinchuk Maya Davidovna, Registration Date 10-01-2007 Organization I.N.Frantsevich Institute for Probmens of Materials Sciences Ukrainian Academy of Science popup.description2 Intrinsic and extrinsic defects of lattice, their influence on properties of materials on the base of incipient ferroelectrics KTaO3 and SrTiO3 doped by Li, Nb, Mn, Fe, Ca and Ba were investigated by ESR and NMR methods as well as by dielectric spectroscopy. Theory of nonlinear dielectric susceptibility was evolved for systems considered out of the frame of mean field, but in frame of random field method. The technology of obtaining of compact ceramic samples of KTaO3 doped by 1-6 mol. % LiTaO3 and KNbO3 using hot-press method and SrTiO3 doped by Ca and Ba oxides using accepted agglomeration and hot-pressing was developed. New method of obtaining of KTa1-xNbxО3 thin films consisting in sputtering of two-layer systems: KOH and film of appropriate metall oxide with following annealing at T = 500 C, was proposed. Product Description popup.authors popup.nrat_date 2020-04-02 Close