Volume 43, Number 5, September I 1998
|Page(s)||605 - 606|
|Section||Geophysics, astronomy and astrophysics|
|Published online||01 September 2002|
Comments on “Metal-insulator transition in the persistent photoconductor :”
Institut für Festkörper- und Werkstofforschung Dresden -
D-01171 Dresden, Germany
2 Cavendish Laboratory, Madingley Road - Cambridge CB3 0HE, UK
3 Institut für Physik, Technische Universität Chemnitz - D-09107 Chemnitz, Germany
Accepted: 7 July 1998
The data analysis performed by Leighton et al. is questioned: we argue that their “metallic” curves are in fact activated. Moreover, we demonstrate that the temperature dependence of the conductivity probably displays scaling behaviour.
PACS: 71.30.+h – Metal-insulator transitions and other electronic transitions
© EDP Sciences, 1998
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