Materials Data on FeCo2Si by Materials Project
Co2FeSi is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Fe2+ is bonded in a 8-coordinate geometry to eight equivalent Co1+ and six equivalent Si4- atoms. All Fe–Co bond lengths are 2.44 Å. All Fe–Si bond lengths are 2.81 Å. Co1+ is bonded in a body-centered cubic geometry to four equivalent Fe2+ and four equivalent Si4- atoms. All Co–Si bond lengths are 2.44 Å. Si4- is bonded in a distorted body-centered cubic geometry to six equivalent Fe2+ and eight equivalent Co1+ atoms.
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