[1] Helmholz L, Guzzo A V, Sanders R N. J. Chem. Phys., 1961, 35: 1349.

[2] Reid M F, Pieterson L V. Phys. Rev. B, 2000, 62: 14744.

[5] Morley J P, Faulkner T R, Richardson F S. J. Chem. Phys., 1981, 75: 539.

[6] Tanner P A, Khaidukov N M. J. Phys.: Condens. Matter, 1997, 9: 7817.

[7] Morss L R, Siegel M, Sringer L, et al. Inorg. Chem., 1970, 9: 1771.

[8] Tanner P A. Top Curr. Chem., 2004, 241: 167.

[9] Tanner P A, Kumar V V, Jayasankar C K, et al. J. Alloys and Compounds, 1994, 215: 349.

[10] Pieterson L V, Wegh R T, Meijerink A, et al. J. Chem. Phys., 2001, 115: 9382.

[11] Pieterson L V, Reid M F, Burdick G W, et al. Phys. Rev. B, 2002, 65: 045114.

[12] Pieterson L V, Reid M F, Meijerink A, Phys. Rev. Lett., 2002, 88: 067405.

[13] Zhou X J, Mak C S K, Tanner P A, et al. Phys. Rev. B, 2006, 73: 075113.

[14] Zhou X J, Tanner P A, Faucher M D. J. Phys. Chem. C, 2007, 111: 683.