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Information × Registration Number 0302U005219, 0100U003275 , R & D reports Title Transport properties of HTSC single crystals and compaunds which have phase transition of charge density waves type popup.stage_title Вплив анізотропії вихрової гратки на пінінг та динаміку магнітного потоку у бездвійникових монокристалах YBaCuO. Мікроскопічна теорія нестаціонарних явищ у надпровідних контактах з магнітними бар'єрами Head Obolens'kyj M.O., Registration Date 22-04-2002 Organization Kharkov National University named after V.N.Karazin popup.description2 The objects of experimental research are high temperature single crystal YBaCuO and single crystal of Nb1-xSnxSe2 layered compounds. The aim of this work is the continuation of experimental research directed on the studying of the influence of artificial created irradiations defects and controlled impurities on critical parameters of the superconducting state. We report on drastic change of vortex dynamics with increase of quenched disorder: for rather weak disorder it was found a single vortex creep regime, wich was attributed to a Bragg-glass phase, while for enhanced disorder it was found an increase of both the depinning current and activation energy with magnetic field, which was attributed to entangled vortex phase. It was discussed also the influence of oxygen dificient, impurities and hydrostatic pressure on critical parameters of the superconducting state in our compounds. Product Description popup.authors popup.nrat_date 2020-04-02 Close