Abrupt changes in resonance positions, hysteretic temperature behavior, and coexistence of phases, which indicate a first-order phase transition, have been revealed from measurements of temperature dependences of the EPR spectra of Gd3+ and Mn4+ centers in the vicinity of the structural transition of lanthanum gallate. The transformation of monoclinic Gd3+ centers into trigonal Gd3+ centers upon the phase transition has been used to estimate the adequacy of two approximations of the superposition model for parameters of the zero-field splitting of the ground state.
Original languageEnglish
Pages (from-to)773-778
Number of pages6
JournalPhysics of the Solid State
Volume53
Issue number4
DOIs
Publication statusPublished - 1 Apr 2011

    ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

    WoS ResearchAreas Categories

  • Physics, Condensed Matter

ID: 37834673