Application of multiband CPA to the ferromagnetic BCC Fe-V alloys
- 1 August 1977
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 7 (8) , 1623-1633
- https://doi.org/10.1088/0305-4608/7/8/029
Abstract
The results of polarized neutron diffraction measurements on ferromagnetic BCC Fe-V alloys are analysed within the multiband CPA theory. A Hubbard Hamiltonian with intra- and interatomic exchange interaction is used. Both Hubbard and exchange terms are treated in the Hartree-Fock approximation. A good agreement for the magnetic moment and asphericity of its distribution is found. It is shown that the increase of the asphericity parameter with vanadium content is caused by the transfer of eg electrons from vanadium to iron sites. This transfer is responsible also for the occurrence of a negative moment on vanadium confirmed in diffuse scattering measurements.Keywords
This publication has 18 references indexed in Scilit:
- Magnetic-moment distribution in ferromagnetic Fe-Cr alloysPhysical Review B, 1975
- Coherent-potential approximation with orbital degeneracy in ferromagnetic alloys an application to ferromagnetic Co-Ni alloys in f.c.c. phaseIl Nuovo Cimento B (1971-1996), 1974
- Density of states and asphericity of electron distribution in ferromagnetic Co-Ni alloysSolid State Communications, 1973
- Calculation of Electronic Structure of Fe Base bcc Ferromagnetic Alloys in the Coherent Potential ApproximationJournal of the Physics Society Japan, 1972
- Calculation of Electronic Structure of Ni Base fcc Ferromagnetic Alloys in the Coherent Potential ApproximationJournal of the Physics Society Japan, 1972
- An Application of the Coherent Potential Approximation to Ferromagnetic AlloysJournal of the Physics Society Japan, 1971
- Electron States in Ferromagnetic Iron. I. Band PropertiesPhysical Review B, 1971
- Neutron diffraction studies of magnetic moments in dilute transition metal alloysJournal de Physique et le Radium, 1964
- Paramagnetic Behavior of Iron-Rich Iron-Vanadium AlloysJournal of Applied Physics, 1962
- Low-Temperature Specific Heat of Body-Centered Cubic Alloys ofTransition ElementsPhysical Review B, 1960