Abstract
The influence of spin fluctuations on the energy spectra of sp and d current carriers in almost ferromagnetic semiconductors based on compounds of d transition metals is examined. It is shown that because electron spectra split in the fluctuating exchange fields in almost ferromagnetic systems, electronic transitions of the type semiconductor-metal are possible, accompanied by the disappearance of energy gaps in the spectra of the sp and d electrons at various temperatures and by a shift of the chemical potential into the region of allowed energies. A specific analysis of similar electronic transitions is presented, based on the almost ferromagnetic compound FeSi.
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Fiz. Tverd. Tela (St. Petersburg) 41, 1792–1796 (October 1999)
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Volkov, A.G., Povzner, A.A., Kryuk, V.V. et al. Spin fluctuations and peculiarities of semiconductor-metal electronic transitions in almost ferromagnetic compounds of transition metals. Phys. Solid State 41, 1644–1648 (1999). https://doi.org/10.1134/1.1131062
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DOI: https://doi.org/10.1134/1.1131062