Abstract
High field ESR measurements of LiMn2O4 powder samples, which are obtained by the sol-gel method with calcinations at 700 and 850 °C, have been performed under the pulsed magnetic field up to 16 T and in the temperature region from 4.2 to 300 K. Analysis of the obtained data in connection with the magnetic susceptibility and our previous ESR data shows that the high field ESR is a powerful means for the characterization of LiMn2O4 powder samples. Our result shows that the impurity phase Li2MnO3 already exits in the sample obtained by calcinations at 850 °C and the sample obtained by calcinations at 600 °C is close to the stoichiometry. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
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