The morphology of the relief of nanosized titanium films on the mica surface was studied using a scanning probe microscope at various scales. The characteristic features of the nanorelief of the surface of the investigated films, including fractal properties, are described. The obtained data on the fractal dimension are compared with the available experimental data, as well as the data obtained using scanning tunneling microscopy. Recommendations for the development of technology for «growing» structures with a given surface morphology are proposed.
Проведено исследование морфологии рельефа наноразмерных пленок никеля и хрома на поверхности слюды с помощью сканирующего зондового микроскопа. Описаны характерные особенности нанорельефа поверхности исследуемых пленок, включая фрактальные свойства. Полученные данные по фрактальной размерности сравниваются с имеющимися экспериментальными данными, а также данными полученными с использованием сканирующей туннельной микроскопии. Предложены рекомендации по развитию технологии «выращивания» структур с заданной морфологией поверхности. Ключевые слова: сканирующая зондовая микроскопия, нанорельеф, фрактальная размерность, наноразмерные пленки никеля и хрома.
The results of the micro- and nanostructures investigation of Sm(CoCuFe)5 alloys by means of scanning electron and atomic force microscopy are presented. It was shown that sequential high- and low-temperature heat treatments lead to the formation of a homogeneous microstructure with nanoscale compositional heterogeneities. Such a structure provides a coercive filed of up to 32 kOe. The coercivity and remanent magnetization of the samples in the temperature range from 300 to 700 K linearly decrease. The predominant coercivity mechanism in these materials is pinning on nanoscale inhomogeneities with an increased copper concentration. The fractal dimension of the surface of the Sm(CoCuFe)5 alloy metallographic specimen was determined at different stages of heat treatments. The comparative analysis of magnetic properties and microstructure in the framework of fractal geometry was carried out.
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