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 |
|---|---|
| Pages (from-to) | 1065-1070 |
| Number of pages | 6 |
| Journal | Soviet Physics Journal |
| Volume | 24 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - Dec 1981 |
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Cite this
Influence of Fermi surface topology on kinetic properties of Fe-Co alloys in the domain close to an equiatom composition. / Zenin, B. S.; Nyavro, V. F.; Fadin, V. P.
In: Soviet Physics Journal, Vol. 24, No. 12, 12.1981, p. 1065-1070.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Influence of Fermi surface topology on kinetic properties of Fe-Co alloys in the domain close to an equiatom composition
AU - Zenin, B. S.
AU - Nyavro, V. F.
AU - Fadin, V. P.
PY - 1981/12
Y1 - 1981/12
N2 - 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.
AB - 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.
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U2 - 10.1007/BF00893724
DO - 10.1007/BF00893724
M3 - Article
VL - 24
SP - 1065
EP - 1070
JO - Russian Physics Journal
JF - Russian Physics Journal
SN - 1064-8887
IS - 12
ER -