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JETP Letters

, Volume 84, Issue 3, pp 141–145 | Cite as

Magnetic resonance, phase transition, and phase coexistence in a highly doped La0.8Sr0.2MnO3 manganite near the Curie point

  • V. A. Berezin
  • V. A. Tulin
  • Ya. M. Mukovskiĭ
  • R. V. Privezentsev
Article
  • 37 Downloads

Abstract

Magnetic resonance and microwave impedance are studied in a highly doped La0.8Sr0.2MnO3 manganite near the Curie temperature. A splitting of the resonance line is observed in the temperature region 6° below the temperature corresponding to the maximum impedance at zero magnetic field. The microwave impedance exhibits a hysteretic behavior in increasing and decreasing temperature runs with jumps at the ends of a 2°-wide temperature interval. The splitting of magnetic resonance occurs immediately above the temperature corresponding to the impedance jump in zero magnetic field. The jumps and the hysteretic behavior of the impedance are interpreted as a manifestation of the magnetic structure phase transition of the first order.

PACS numbers

75.47.Lx 76.50.+g 

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Copyright information

© Pleiades Publishing, Inc. 2006

Authors and Affiliations

  • V. A. Berezin
    • 1
  • V. A. Tulin
    • 1
  • Ya. M. Mukovskiĭ
    • 2
  • R. V. Privezentsev
    • 2
  1. 1.Institute of Microelectronics Technology and High Purity MaterialsRussian Academy of SciencesChernogolovka, Moscow regionRussia
  2. 2.Moscow Institute of Steel and AlloysMoscowRussia

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