Studies of the Ionic Ferromagnet (LaPb)MnO3. VI. Antiresonance and the Ferromagnetic Resonance Line Shape

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Abstract
The resonance line shape and line width of the family La(1−x)PbxMnO3 have been examined from 77 to 430 °K in a frequency range from 13 to 25 GHz. The distorted line shape is in qualitative agreement with a calculation that includes the effect of the skin depth. The antiresonance condition has been observed and it is also in qualitative agreement with theory.