Abstract
We report on magnetic resonances observed in the doped lanthanum manganite La0.8Li0.2MnO3 (LLMO) below the Curie temperature Tc ~ 235 K. Fields up to 30 T were employed. The data are compared with that from the archetypal colossal magnetoresistance perovskite La0 7Ca0 3MnO3 (LCMO) taken under similar conditions. In contrast to LCMO, LLMO exhibits two resonances, one above and one below the LCMO resonant field. These are attributed to a ferromagnetic interaction and a canted ferromagnetic interaction.
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