Crossover to Phonon-Assisted Tunneling in Insulators and Metals

  • Alois Würger


Tunneling defects in various materials are well described in terms of quantum motion of a bistable system. The thermal behavior at helium temperature first indicated the existence of such defects; as examples we note the Schottky anomaly of weakly doped alkali halides reported by Narayanamurti and Pohl (1970), and the linear specific heat of oxide glasses below 5 K observed by Zeller and Pohl (1971).


Debye Temperature Perturbation Series Crossover Temperature Asymmetry Energy Tunnel Frequency 
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© Springer-Verlag Berlin Heidelberg 1998

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  • Alois Würger

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