Volume 59, Number 1, July 2002
|Page(s)||100 - 106|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 June 2002|
Scaling of the conductivity of insulating : A temperature-independent hopping prefactor
Physics Department, City College of the City University of
New York New York, NY 10031, USA
Corresponding author: email@example.com
Accepted: 11 April 2002
For insulating with dopant concentrations from to the critical concentration nc, the conductivity ranging over five orders of magnitude collapses using a single scaling parameter T* onto a universal curve of the form with a prefactor that is independent of temperature and dopant concentration. The function with when , corresponding to Efros-Shklovskii variable-range hopping. For the exponent , a value expected for Mott variable-range hopping in two rather than three dimensions.
PACS: 72.20.Ee – Mobility edges; hopping transport
© EDP Sciences, 2002
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.