Electron hopping in Eu<sub>1–x</sub>Sr<sub>x</sub>FeO<sub>3</sub>and Nd<sub>1–x</sub>Sr<sub>x</sub>CoO<sub>3</sub>
Journal of the Chemical Society Faraday Transactions 2 Molecular and Chemical Physics 75(0): 1199-1204
Article 1979 English
Authors
VJ
Veena Joshi
OP
Om Parkash
GR
G. Narsinga Rao
Abstract
1 min read
Mössbauer and electrical resistivity measurements on Eu1–xSrxFeO3(0.0 < x⩽ 0.4) show the presence of a time-averaged electron configuration of Fe in these solids at T > TN. Variable range hopping arising from Anderson localization seems to occur at T < TN indicating that the electron hopping time in this regime is likely to be greater than 10–7 s. Mössbauer studies on Nd1–xSrxCoO3 show that in the Anderson localization regime, the hopping time is greater than 10–7 s in this system as well.
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