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- W2023200353 abstract "Amorphous Si1-xCrx films with 9, ..., 19 at.% Cr were prepared by means of electron beam evaporation. The electrical conductivity was measured in the regions 2, ..., 4.2 and 14, ..., 20K. If the conductivity is smaller than sigma 0=270+or-50 Omega -1 cm-1, which corresponds to about 14 at.% Cr, its temperature dependence can be described by a scaling law, sigma (T)= sigma 0 phi (T/T0), where only T0 depends on the Cr content and preparation conditions. The asymptotic behaviour for T to 0K is given by sigma (T)= sigma 1 exp (-(T0/T)alpha ) with sigma 1=110+or-20 Omega -1 cm-1 and alpha =0.47+or-0.05. Hence, if the conductivity is smaller than sigma 0, there should be only one conduction mechanism. This mechanism is thermally activated. Thus, sigma 0 should be interpreted as the minimum metallic conductivity." @default.
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- W2023200353 date "1983-11-30" @default.
- W2023200353 modified "2023-10-16" @default.
- W2023200353 title "The metal-semiconductor transition in amorphous Si<sub>1-x</sub>Cr<sub>x</sub>films-scaling behaviour and minimum metallic conductivity" @default.
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- W2023200353 doi "https://doi.org/10.1088/0022-3719/16/33/020" @default.
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