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Observation of variable range hopping at “natural” phonon frequencies

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Zeitschrift für Physik B Condensed Matter

Abstract

Hill's analysis of hopping conductivity data has been applied to ion-bombarded amorphous-silicon samples. The apparent hopping conductivity parameters derived from a standardT −0.25 plot undergo changes by several orders of magnitude when plotted with the exact scaling of the abscissa. A typical example is characterized by a temperature dependence ofdc conductivity according toσ=σ 0 exp (—(T 0/T)m), withm=0.45,T 0 =6.4⋅104K andσ 0=6.6⋅101 Ω−1 cm−1. Fromσ 0 a phonon frequency of about 3−15⋅1012 s−1 is derived.

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Authors and Affiliations

  1. Max-Planck-Institut für Kernphysik, Postfach 103980, D-6900, Heidelberg 1, Germany

    R. Pfeilsticker, S. Kalbitzer & G. Müller

Authors
  1. R. Pfeilsticker
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  2. S. Kalbitzer
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  3. G. Müller
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Pfeilsticker, R., Kalbitzer, S. & Müller, G. Observation of variable range hopping at “natural” phonon frequencies. Z Physik B 31, 233–235 (1978). https://doi.org/10.1007/BF01352347

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