Electron diffraction study of a high-temperature diamond-like silicon ferromagnet with the self-organized superlattice distribution of manganese impurity

Abstract

Crystal structure of Si:Mn diluted magnetic semiconductor with Curie temperature 500К, deposited from laser plasma on GaAs(100) substrates, was investigated by high-resolution transmission electronic microscopy and diffraction. This laser technology allows to reach of solid solution of 15%Mn in silicon with high electrical and full magnetic activity, conservation of diamondlike crystal structure and epitaxy growth of Si:Mn. The self-organized formation of superlattice structures takes place with period equal to trebled distance between nearest atomic layers (110) and interval between layers (110) which are doped by Mn atoms and oriented along direction of growth of 50 nm Si:Mn film.

Magnetic anisotropy of polycrystalline high-temperature ferromagnetic Mn x Si 1-x (x≈0.5) alloy films

“…Development of Si based magnetic semiconductor materials for spintronic applications attracts a lot of attention, since these materials can be easily incorporated into the existing microelectronic technology [1]. In particular, Si-Mn alloys demonstrating unusual magnetic and transport properties [2][3][4][5][6][7][8] have especial interest to engineer non-conventional integrated-circuit elements.…”

“…In particular, Si-Mn alloys demonstrating unusual magnetic and transport properties [2][3][4][5][6][7][8] have especial interest to engineer non-conventional integrated-circuit elements.…”

Magnetic anisotropy peculiarities of high-temperature ferromagnetic Mn x Si 1−x (x ≈ 0.5) alloy films

“…Introduction. -Development of Si-Mn alloys for spintronic applications attracts a lot of attention, since these materials demonstrate unusual magnetic and transport properties and can be easily incorporated into the existing microelectronic technology [1][2][3][4][5][6][7][8][9].…”