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Electron Structure of d-Transition Metals and their Alloys on the Basis of EELS Study

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Kołodziej H. B.

Acta Physica Polonica A

1995

vol. 88

issue 1

171-176

Analysis of characteristic electron energy losses in reflection from the surface provides information on electron and band structure of the solid state. Study of transition metals, their alloys (Fe-N, Zn-Ni) and amorphous alloys Fe_{78}Si_{9}B_{13} show that there are two subsets of electron gas characterized by different oscillation frequency. The presence of independent components of volume plasmons corresponding to s and d electrons is an evidence that despite collectivization both the subsets preserve individual features characteristic of the structure of an isolated atom. From the energy losses the following quantities are determined: the effective mass (μ) for particular electron subsets, the Fermi energy (E_{F}), the band widths (δE) for s and d electrons and contribution of the subsets to the metal conductivity (γ). The obtained results for metals are compared to analogous data for alloys both in crystalline and amorphous phase.

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1 Acta Physica Polonica A

1 1995

1 Kołodziej H. B.

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Electron Structure of d-Transition Metals and their Alloys on the Basis of EELS Study