We present experimental evidence for the indirect nature of the beta-FeSi2 gap. We furthermore show, by analyzing the temperature dependence of the direct gap by means of a thermodynamic empirical model, that beta-FeSi2 exhibits an unusually strong electron-phonon interaction. We finally deduce the electron-hole mobility from our measurements.
NATURE OF THE BAND-GAP OF POLYCRYSTALLINE BETA-FESI2 FILMS
GIANNINI C;
1992
Abstract
We present experimental evidence for the indirect nature of the beta-FeSi2 gap. We furthermore show, by analyzing the temperature dependence of the direct gap by means of a thermodynamic empirical model, that beta-FeSi2 exhibits an unusually strong electron-phonon interaction. We finally deduce the electron-hole mobility from our measurements.File in questo prodotto:
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