Authors: B Lalevic N Fuschillo B Kuliyev W Wang
Publish Date: 1974/11/01
Volume: 5, Issue: 2, Pages: 127-132
Abstract
Transport and dielectric properties of polycrystalline CoO films were studied as functions of the applied field frequency and temperature TheI–V plots showed that the PooleFrenkel field emission mechanism is responsible for conduction at fields105 V/cm The ac conductivity σω the imaginary part of the dielectric constantε2 and tan δ plots as functions of frequency revealed three dispersion regions The σω andε2 frequency dependence indicates a nonadiabatic hopping of charge carriers at low frequencies and adiabatic hopping at high frequencies The activation energy of a dielectric oscillator is 015 eV
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