Electron hopping in Eu1−xSrxFeO3 and Nd1−xSrxCoO3

Joshi, Veena ; Parkash, Om ; Rao, G. N. ; Rao, C. N. R. (1979) Electron hopping in Eu1−xSrxFeO3 and Nd1−xSrxCoO3 Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics, 75 . pp. 1199-1204. ISSN 0300-9238

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Official URL: http://pubs.rsc.org/en/content/articlelanding/1979...

Related URL: http://dx.doi.org/10.1039/F29797501199


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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