A tight-binding calculation of the magnetic properties of TPt (T identical to 3d transition element) ordered alloys with CuAu structure

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Abstract
A tight-binding type self-consistent band calculation is performed to study the magnetic properties of the ordered TPt (T identical to V, Cr, Mn, Fe, Co and Ni) alloys with CuAu structure within the Hartree-Fock approximation of the Hubbard model for their spin polarisation. Global features of their ground-state magnetic properties such as phase stability and local moments are explained successfully. The characteristic tetragonality of the lattice is argued from the calculated uniaxial pressures to be a consequence of the spin polarisation.