The spin-Hamiltonian parameters b₂², b₂^–1 and b₂⁰ for Gd³⁺–O^2– center in the tetragonal phase of Rb_0.95K_0.05CaF₃ perovskite-type compound are studied by the superposition model which considers the (GdOF₅)^4– octahedron distortion related to the elongation or release of the metal–ligand bond lengths in the octahedron. The parameters b ^m₂ can be reasonably explained, and information for the local phase transition behaviour is obtained.

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Volume219, Issue1

May 2000

Pages 3-7

Re-Interpretation of EPR Spin-Hamiltonian Parameters b^m₂ for Gd³⁺–O^2– Center in the Tetragonal Phase of Perovskite-Type Compound Rb_1–xK_xCaF₃ with x = 0.05

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Re-Interpretation of EPR Spin-Hamiltonian Parameters bm2 for Gd3+–O2– Center in the Tetragonal Phase of Perovskite-Type Compound Rb1–xKxCaF3 with x = 0.05

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Re-Interpretation of EPR Spin-Hamiltonian Parameters b^m₂ for Gd³⁺–O^2– Center in the Tetragonal Phase of Perovskite-Type Compound Rb_1–xK_xCaF₃ with x = 0.05