Effect of (0001) Strain on the Electronic and Magnetic Properties of the Half-Metallic Ferromagnet Fe₂Si

Figure 1

Band structures of Fe₂Si under various strains: (a) −12%, (b) −7%, (c) 0%, (d) 5%, (e) 9%, and (f) 12%. The band structure of spin-down electrons has indirect bandgap semiconductor character. The valence band maximum is 0.164 eV at point S and the conduction band minimum is 0.682 eV at the BZ point L. The blue arrow is from the top of the valence band point to the bottom of the conduction band.

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(b)

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