Experimental ESR studies of nano-size magnetic heterogeneities in polycrystalline La 0.5 Pb 0.5 MnO 3 and La 1.34 Sn 0.66 Mn 2 O 7 Academic Article uri icon

abstract

  • Abstract Electron spin resonance spectra of La 0.5 Pb 0.5 MnO 3 and La 1.34 Sn 0.66 Mn 2 O 7 powder samples have been investigated in the temperature range, 120–500 K. The spectra exhibit a gradual narrowing of the ferromagnetic resonance signal, upon increasing the temperature and approaching Curie temperature, T c . The temperature dependence of the linewidth and the double integrated resonance intensity are attributed to ferromagnetic inhomogeneities.

publication date

  • January 1, 1999