EPR zero-field splitting parameters and structural distortion study of Mn2+-doped (CH3)4NCdCl3 crystal in high-temperature phases
作者： Dong Die , Xiao-Yu Kuang , Jian-Jun Guo , Hui Wang , Kang-Wei Zhou
DOI: 10.1016/J.CPLETT.2006.05.068
关键词: Analytical chemistry 、 Molecular physics 、 Delta 、 Doping 、 Distortion 、 Crystal 、 Crystal structure 、 Zero field splitting 、 Ion 、 Chemistry 、 Electron paramagnetic resonance
摘要: The EPR zero-field splitting parameters and structural distortion of Mn2+-doped (CH3)(4)NCdCl3 crystal in high-temperature phases have been studied by diagonalizing the complete energy matrices. D (a - F) are demonstrated to be negative positive, respectively, obtain a reasonable explanation together. Simultaneously, magnitude local lattice structure around Mn2+ ion this. is determined, namely, Delta R = -0.13 angstrom theta 2.975 degrees for T 124 K; -0.12 2.610 297 -0.26 O 2.870 573 K. From distortion, we deduce that new phase transition should occur at temperatures ranging from This also agreement with recent differential scanning calorimetric measurements. (c) 2006 Elsevier B.V. All rights reserved.
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