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Information × Registration Number 0302U005161, 0100U003276 , R & D reports Title Influence of electrons and phonons scattering processes on low temperatures transport properties of complicated solid-state systems popup.stage_title Композиційне та топологічне упорядкування аморфних матеріалів на основі Fe, Co та Ni при ізохронному та ізотермічному відпалі. Електро- і теплопровідність системи TaHx при проміжних значеннях "х" в інтервалі температур 2 ... 300 К Head Merisov B.O.; Khadzhaj G.Ya., Registration Date 25-03-2002 Organization Kharkov National University named after V.N.Karazin popup.description2 The objects of a research: TaHx system; quasi-crystals Al-Pd-Re; the combination Co1-xFexTiSb; the films CoSi; systems with the Josephson junctions; the magnetic combination Nd2Fe14B. The purpose of operation is the study of thermal properties of complicated solid-state systems at low temperatures; simulation of composition ordering in stratified systems; a research of a thermal expansion of samples Nd2Fe14B at low temperatures. The correlation between concentration dependencies of a gap in a superconducting spectrum and Lorentz function is detected for a two-phase system TaHx. The model for residual resistance of this system is found. It is shown, that the mechanisms of scattering of phonons in the perfect quasi-crystals Al-Pd-Re are similar to those in usual crystals. It is found, that iron doping changes the temperature dependence of Co1-xFexTiSb resistance from the typical for jumping transport at low temperatures to the activation at high temperatures. The origin of imperfections in CoSi films issimulated; the conditions of a synchronization of the Josephson junctions system are found at the significant divergences in critical currents. At study TEC of magnetic combination Nd2Fe14B, which has "record" magnetic performances, in an interval of temperatures 80-300 to are found the indications of phase transition. Product Description popup.authors popup.nrat_date 2020-04-02 Close