Abstract
In the present work an X-band electron magnetic resonance (EMR) investigation in the paramagnetic regime of colossal magnetoresistive manganite La2/3Ca1/3 MnO3 (LCMO) nanowires was carried out. The temperature dependence of the EMR line width has been analyzed in terms of the small polaron hopping scenario. From this analysis, the polaron activation energy Ea in LCMO nanowires was evaluated. A discussion is given concerning the factors which could explain the smaller value of Ea as compared with the corresponding ones for LCMO nanoparticles.
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