The paper considers a new method for the formation
of the β-FeSi2 phase on silicon and sapphire substrates by pulsed
laser deposition in vacuum. A series of structures with varying
iron concentration in the sputtered target was prepared. The
phase composition of the films is analyzed from the identification
of peaks in the Raman spectra. The study of the magnetic
properties of the samples was carried out by recording the
magnetic field dependence of the Hall resistance. The formation of
additional magnetic phases Fe3Si and FeSi is shown under growth
conditions that provide an increased incorporation of Fe atoms
into the formed layer. The analysis of the phase composition of
films formed on silicon and sapphire substrates with the same
technological growth parameters is carried out.
Исследованы возможности легирования углеродных слоев, выращиваемых методом импульсного лазерного нанесения, примесями переходных металлов. Изучены состав, оптические и электрические параметры структур на подложках GaAs и Si/SiO2. Показано, что введение таких атомов, как Fe, модифицирует магнитные свойства слоев, вызывая нелинейные магнитополевые зависимости эффекта Холла при температурах вплоть до 300 K. Ключевые слова: импульсное лазерное нанесение, углеродные слои, легирование, примеси переходных металлов.
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