[1] [1] Becker P. Advanced Materials, 2008, 10(13): 979.

[2] [2] Rajesha D M. Optical Materials, 2008, 31(2): 461.

[4] [4] Whatmore R W, Shorrocks N M, O’Hara C, et al. Electronic Letters, 1981, 17: 11.

[7] [7] Hou M, You J L, Simon P. CrystEngComm., 2011, 13: 3030.

[8] [8] Osipova L M, Osipov A A, Bykov V N. Glass Physics and Chemistry, 2007, 33: 486.

[10] [10] Wan Songming, Tang Xiaolu, Sun Yulong, et al. CrystEngComm., 2014, 16(15): 3086.

[11] [11] Krogh-Moe J. Acta Cryst., 1962, 15: 190.

[12] [12] Krogh-Moe J. Acta Cryst., 1968, B24: 179.

[13] [13] Segall M D, Lindan P J D, et al. Journal of Physics: Condensed Matter, 2002, 14(11): 2717.

[14] [14] Perdew J P, Burke K, et al. Physical Review Letters, 1996, 77(18): 3865.

[15] [15] Wu Z, Cohen R E. Physical Review B, 2006, 73(23): 5116.

[16] [16] Monkhorst H J, J. D. Physical Review B, 1976, 13(12): 5188.

[17] [17] You J L, Jiang G C, Hou H Y, et al. Journal of Raman Spectroscopy, 2005, 36: 237.

[18] [18] Scott A P, Radom L. The Journal of Physical Chemistry, 1996, 100(41): 16502.