Theoretical studies of the spin-Hamiltonian parameters and their stress dependences for Ru3+ and Ir4+ ions in Y3Ga5O12 crystals
作者： Ping Su , Lv He , Wen-Chen Zheng
DOI: 10.1016/J.JALLCOM.2008.06.118
关键词:
摘要: The spin-Hamiltonian parameters (g factors g(parallel to), g(perpendicular to) and hyperfine structure constants A(parallel A(perpendicular to)) the stress dependence of for 4d(5) ion Ru(3+) 5d(5) Ir(4+) in Y(3)Ga(5)O(12) (YGG) crystals are calculated from perturbation formulas related to low-spin (2)T(2) term subjected trigonal symmetry crystal field. results reasonable agreement with experimental values. Based on calculations, signs suggested, local bonding angles beta (between metal-ligand bond C(3) axis) angular compressibilities d beta/dP(where P parallel obtained both systems. It is found that angle 6 compressibility beta/dP impurity center different not only corresponding values host crystal, but also impurity. discussed. (C) 2008 Elsevier B.V. All rights reserved.
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