Beliayev E. Effects of microscopic and macroscopic disorder and metal-insulator transition in conductivity of thin Au films.

Object - localization phenomena under disordering; goal - experimental study of resistance and galvanomagnetic properties of disordered metal systems; method - ion disordering; results - 1) The ifluence of cristal lattice disoder on characteristic times of electron-phonon relaxation is studied, 2) The resistance and galvanomagnetic properties of gold films are studied at strong disodering till the metal-insulator transition; novelty - 1) there observed the change of function dependence of electron-phonon frequency rate on temperature and electron mean free path in "dirty limit" conditions; 2) the effect of weakening of spin-orbit electron scattering is found with growing atomic disorder in thin metal films; 3) the conductivity of thin gold film near the percolation threshold is governed by a single linking chain, with incoherent mesoscopic resistance fluctuations; 4) the transition from strong to weak localization in ultrathin quench-condensed gold film takes place under the influence of temperature and the measuring electric field applied to the film; 5) the effect of negative magnetoresistance is found in ultrathin quench-condensed gold films in conditions of nearest neighbor hopping conduction and its temperature and magnetic field dependence is established; employment - fundamental science, novel materials.