Article

JETP Letters

, Volume 96, Issue 6, pp 416-420

Electron paramagnetic resonance studies of GdMnO3 single crystal and thin film deposited onto a LaAlO3 substrate

  • I. V. YatsykAffiliated withZavoisky Physical Technical Institute, Kazan Scientific Center, Russian Academy of Sciences
  • , D. V. MamedovAffiliated withKazan (Volga Region) Federal University
  • , I. I. FazlizhanovAffiliated withZavoisky Physical Technical Institute, Kazan Scientific Center, Russian Academy of Sciences
  • , T. P. GavrilovaAffiliated withZavoisky Physical Technical Institute, Kazan Scientific Center, Russian Academy of Sciences
  • , R. M. EreminaAffiliated withZavoisky Physical Technical Institute, Kazan Scientific Center, Russian Academy of Sciences Email author 
  • , N. V. AndreevAffiliated withNational University of Science and Technology MISiS
  • , V. I. ChichkovAffiliated withNational University of Science and Technology MISiS
  • , Ya. M. MukovskiiAffiliated withNational University of Science and Technology MISiS
  • , H. -A. Krug von NiddaAffiliated withExperimentalphysik V, Universität Augsburg
    • , A. LoidlAffiliated withExperimentalphysik V, Universität Augsburg

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Abstract

Electronic paramagnetic resonance (EPR) spectra of a GdMnO3 single crystal and GdMnO3/LaAlO3 thin film have been measured at X- and Q-band frequencies in the temperature range from 4.2 to 300 K. It is found that the EPR spectrum of a GdMnO3 single crystal consists of only one broad exchange-narrowed line. Unusual magnetism is observed at the interface between the GdMnO3 thin film and LaAlO3 substrate, where it is possible to see the fine structure of the EPR spectrum for a Gd3+ ion. The parameters characterizing the fine structure related to the Gd3+ ion in the GdMnO3 film deposited onto the LaAlO3 substrate are determined.