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Information × Registration Number 0301U002214, 0198U005790 , R & D reports Title Investigation of the surfaces characteristics based on the analyse of the tunnel current noice and fluktuations. 9117. popup.stage_title Замір просторового розподілу дісперсії тунельного струму. Дослідження статистичних закономірностеї шумів та релаксації поверхневих структур. Дослідження характеристик поверхні за результатами аналізу шуму та флуктуації тунельного струму. 5526 Head Groshenko M.O., Registration Date 28-02-2001 Organization National Taurida V. Vernadsky University popup.description2 Noise and fluctuations of STM can bi analised for a surface investigation. The tunnel gap behave as a passive element, which transforms the noise in the sample-tip-piezodriver system and as an active source of noise due to the stochastic character of polarisation and relocation of adsorbed molekules in the near-tip region. A spetial distribytion of dispersion of the tunneling current of STM operated in air was detekted. The samples of Cu, Nb, C (graphite), Pb, Zn, SnO2, Si were studied. The regions with a high dispersion value formed dots, spots and lines. During several sequence scannings of surface by tip some spots can vanish. The connection of the ob served dispersion with relief features and with the picture of the barrier height distribution is discussed. The simple model of the noise source is proposed. Product Description popup.authors popup.nrat_date 2020-04-02 Close