Thermodynamic stability, magnetism and half-metallicity of various (100) surfaces of Heusler alloy Ti2FeSn

Surface energies (in eV/Å2) as a function of chemical potentials μFe and μTi (in eV) for the five different terminations of the FeFe*, TiFe, TiTi*, TiSn and SnSn* of the Ti2FeSn (100) surface.192