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 E a in LCMO nanowires was evaluated. A discussion is given concerning the factors which could explain the smaller value of E a as compared with the corresponding ones for LCMO nanoparticles.
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Authors' address: Adriana Popa, National Institute for Research and Development of Isotopic and Molecular Technologies, P.O. Box 700, Cluj-Napoca 400293, Romania
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Popa, A., Toloman, D., Grecu, M. et al. Polaron Activation Energy as Evidenced by EMR in Colossal Magnetoresistive Nanowires. Appl Magn Reson 34, 21–26 (2008). https://doi.org/10.1007/s00723-008-0097-5
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DOI: https://doi.org/10.1007/s00723-008-0097-5