[1] [1] Yang Xudong, Xu Xingguang, Shao Yaopeng et al.. Photovoltaic effect in doped photorefractive LiNbO3 crystal［J］. Acta Optica Sinica, 2003, 23(4): 398～401

[2] [2] Chai Zhifang, Liu Dean, Zhi Yanan et al. Photorefractive characteristics investigation in LiNbO3Ru crystals［J］. Acta Optica Sinica, 2006, 26(8): 1246～1248

[3] [3] Zhang Tingrong, Li Ling, Yu Wanlun. An investigation for the substitutional sites of Ni2+ in liNbO3Ni2+ crystals［J］. J. Sichuan Normal University, 1997, 20(4): 73～77

[4] [4] Xu Changtan, Zhou Zhiming. An investigation of the optical spectra and the ESR spectrum of Ni2+LiNbO3［J］. Spectroscopy and Spectral Analysis, 2001, 21(3): 298～300

[5] [5] Ruipeng Chai, Xiaoyu Kuang, Caixie Zhang et al.. Theoretical study of EPR spectra and local structure for (NiO6)10- cluster in LiNbO3Ni2+ and Al2O3Ni2+ systems［J］. Phys. Chem. Sol., 2008, 69(7): 1848～1855

[6] [6] Zhang Hongmei, Ma Dongping, Liu De. Energy spectrum and g factor for LiNbO3Ni2+［J］. Acta. Physica. Sinica., 2002, 51(7): 1553～1557

[7] [7] Ziyuan Yang, Czeslaw Rudowicz, Yauyuen Yeung. Microscopic spin-Hamiltonian parameters and crystal field energy levels for the low C3 symmetry Ni2+ centre in LiNbO3Ni2+ crystals［J］. Physica B., 2004, 348(2): 151～159

[8] [8] Zhang Lei, Yin Chunhao, Huang Zhiming et al.. Energy level splitting of ground-states and Jahn-Teller effects in YAG∶Cr3+crystal［J］. Acta Optica Sinica, 2007, 27(10): 1889～1895

[9] [9] Yin Chunhao, Yang Liu, Zhang Lei et al.. Jahn-Teller effect of spectrum structure and g factor of electron paramagnetic resonance in ZnSiF66H2OFe2+［J］. Acta Optica Sinica, 2006, 26(6): 859～864

[10] [10] Dongfeng Xue, Xiangke He. Dopant occupancy and structural stability of doped lithium niobate crystals［J］. Phys. Rev. B., 2006, 73(6): 1131～1136

[11] [11] T. H. Yeom, Y. M. Chang, S. H. Choh et al.. Experimental and theoretical investigation of Spin-Hamiltonian parameters for the low symmetry Fe3+ centre in LiNbO3［J］. Phys. Status. Solid B., 1994, 185(2): 417～424

[12] [12] Zhao Minguang. Crystal Field Theory［M］. Chengdu: Sichuan Education Publishing House,1988, 139～161, 16, 229, 234～238, 168

[13] [13] Yin ChunHao, Jiao Yang, Zhang Lei. Spectral hyper-fine structure and zero-field splitting parameters with Jahn-Teller effect of CsNiCI3 crystal［J］. Acta Physica Sinica, 2006, 55(11): 6047～6054

[14] [14] Czeslaw Rudowicz, Ziyuan Yang, Yauyuen Yeung et al.. Crystal field and microscopic spin Hamiltonians approach including spin-spin and spin-other-orbit interactions for d2 and d8 ions at low symmetry C3 symmetry sites: V3+ in Al2O3［J］. Phys. Chem. Solid., 2003, 64(7): 1419～1428

[15] [15] Hao Yue, Yang Ziyuan. Magnetic interactions and microscopic spin Hamiltonian approaches for 3d3 ions at trigonal symmetry sites［J］. J. Magn. Mag. Mater., 2006, 299(2): 445～457

[16] [16] C. W. Neilson, G. F. Koster. Spectroscopic coefficients for the pn, dn, fn configurations［M］. Cambridge, MIT Press, 1963: 6～10

[17] [17] Zhao Minguang, Du Maolu, Sen Guoyin. A μ-k-α correlation ligand-field model for the Ni2+-6X-cluster［J］. J. Phys. C (Solid State Physics), 1987, 20(33): 5557～5571

[19] [19] R. E. Waston, B1ume M. Spin-spin interaction in paramagnetic ions［J］. Phys. Rev., 1965, 139(8): 1209～1210

[20] [20] S. C. Abrahams, J. M. Reddy, J. L. Bernstein. Ferroelectric lithium niobate. 3. Single crystal X-ray diffraction study at 24 ℃［J］. Phys. Chem. Solid, 1966, 27(7): 997～1006

[21] [21] Yang Z. Y. Microscopic origins of the spin-Hamiltonian parameters for 3d2 state ions in a crystal［J］. Acta Physica Sinica, 2004, 53(6): 1981～1988

[22] [22] L. Arizmendi, J. M. Cabrera, F. Agullo-Lopez. X-ray induced luminescence of LiNbO3［J］. Ferroelectrics, 1980, 26(6): 823～825

[23] [23] A. K. Petrosyan, A. A. Mirzakhanyan, Zero-field splitting and g-Values of d8 ions in a trigonal crystal field［J］. Phys. Status Solid, 1986, 133(2): 315～322