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- W2026902183 abstract "Data are given of the hall mobility, carrier concentration and conductivity for epitaxial, polycrystalline, and amorphous Ge films over a temperature range 100 to 400 K; all specimens are found to be p-type. The room temperature noise spectra for these films are also given. It is found that amorphous films can be characterised by the presence of generation–recombination noise with time constants of 4.5 × 10−3 and 2 × 10−5 s wheras in crystalline films only 1/f noise is present. An activated mobility was found for unannealed amorphous films and the data agrees with present theories remarkably well except that the apparent hole concentration falls with a rise in temperature. Es werden Werte für die Hallbeweglichkeit, die Ladungsträgerkonzentration und Leitfähigkeit für epitaktische, polykristalline und amorphe Ge-Schichten in. Temperaturbereich von 100 bis 400 K mitgeteilt; alle Proben waren p-leitend. Dazu werden die Rauschspektren dieser Schichten für Zimmertemperatur angegeben. Es wird gefunden, daß die amorphen Schichten durch Generations–Rekombinationsrauschen charakterisiert sind mit Zeitkonstanten von 4,5 × 10−3 und 2 × 10−5 s, während in den kristallinen Schichten nur 1/f-Rauschen auftritt. Für ungetemperte amorphe Schichten wird eine aktivierte Beweglichkeit beobachtet, wobei die Werte mit existierenden Theorien bemerkenswert gut übereinstimmen, bis auf die Tatsache, daß die scheinbare Löcherkonzentration mit steigender Temperatur abnimmt." @default.
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- W2026902183 date "1973-04-16" @default.
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- W2026902183 title "Hall effects and noise measurements in epitaxial, polycrystalline, and amorphous Ge" @default.
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- W2026902183 doi "https://doi.org/10.1002/pssa.2210160206" @default.
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