The magnetic structure in the ground state of alloys between the ferromagnetic and the antiferromagnetic metals is investigated by using the coherent potential approximation (CPA) combined with the Hartree-Fock (HF) approximation for the Hubbard Hamiltonian. By bearing in mind Fe-Cr alloys, the successive transitions from the ferromagnetic state to the antiferromagnetic one via the spin glass one with varying the alloy composition are demonstrated by the HF-CPA calculation, which distinguishes Fe atoms with magnetic moments parallel to the bulk magnetization or the sublattice one from those with antiparallel moments. An overall agreement between various magnetic measurements on Fe-Cr and the present calculation is obtained.
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Taeho Jo (1982) studied this question.
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