Abstract
The electron energy spectrum for the superstructure FeCo is computed by a symmetrized Green's function method. A curve of the density of the electron states N(ε) and the Fermi surface (FS) section is constructed for the ferromagnetic state obtained by a rigid shift in conformity with the value of the atomic magnetic moment of the alloy. A FS scheme is proposed, consisting of definite sheets belonging to different energy bands emerging at the Fermi level. A semiquantitative estimate is made of the magnitude of the FS area, and the contribution of separate FS sheets to the magnitude of the anomalous Hall R s, Nernst-Ettingshausen Q s and thermal emf S coefficients are examined. The nature of the change in the separate FS sections as the alloy composition changes is examined within the framework of the rigid band model, and a qualitative explanation is obtained for the concentration dependence of R s and S in Fe-Co alloys.
Original language | English |
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Pages (from-to) | 1065-1070 |
Number of pages | 6 |
Journal | Soviet Physics Journal |
Volume | 24 |
Issue number | 12 |
DOIs | |
Publication status | Published - Dec 1981 |
ASJC Scopus subject areas
- Physics and Astronomy(all)