Paramagnetic phase observed by electron spin resonance in the phase separated Pr0.65Ca0.25Sr0.10MnO3manganite below the order temperature

  • Sánchez R
  • Niebieskikwiat D
  • Ramos C
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We present electron spin resonance (ESR) data at 9.4 GHz in the phase separated Pr0.65Ca0.25Sr0.10MnO3manganite. The coexistence of two resonance lines are observed below the short-range magnetic-order temperature (Ts≈255K). One of the ESR line is a paramagnetic contribution retained from the high-temperature phase. The second contribution appears at Ts, which is associated with the presence of ferromagnetic regions. The two contributions can be seen near the charge-order transition, 7co≈210K. We study the temperature evolution of the resonance field and the linewidth of the ESR lines. © 2003 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • ESR
  • Manganites
  • Metal-insulator transition
  • Phase separation

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  • R. D. Sánchez

  • D. Niebieskikwiat

  • C. Ramos

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