The molecular dynamics method is applied to study structural and mechanical effects appearing during the lithium ion motion in a dc electric field along a planar channel formed by perfect silicene sheets and sheets containing vacancy-type defects. Mono-, di-, tri-, and hexavacancies of rather densely and uniformly filled silicene sheets are arranged one above the other on a graphite substrate. The times of Li^+ ion passage through silicene channels with various gaps are determined. The construction of Voronoi polyhedra and truncated polyhedrons, whose centers coincide with the moving ion position allowed revealing the structural features inherent to the two-dimensional layered structure. The nature of stresses appearing in silicene sheets most critical to ion motion over the channel is determined.
Методом молекулярной динамики исследованы новые анодные материалы, по лученные из силицена на металлических подложках. По степени заполняемости анода и его механической прочности предпочтение отдается подложкам Ni(111) и Cu(111). Наибольшая степень кристалличности упаковки реализуется в силиценовом канале на подложке Ag(111). Самые низкие локальные нормальные напряжения появляются в стенках канала на подложке Al(111). Определен профиль электрического напряжения как функция концентрации Li, адсорбированного на двухслойный свободностоящий силицен.
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