[1] Minomura S, Drickamer H G. J Phys Chem Solids, 1962, 23: 451.
[2] Samara G A, Drickamer H G. J Phys Chem Solids, 1962, 23: 457.
[3] Vechten J A Van. Phys Rev B, 1973, 7: 1479.
[4] Pitt G D, Vyas M K R. J Phys C: Solid State Phys, 1973, 6: 274.
[5] Bundy F P. Rev Sci Instrum, 1975, 46: 1318.
[6] Yu S C, Spain I L. Solid State Commun, 1978, 25: 49.
[7] Onodera A, Ohtani A. J Appl Phys, 1980, 51: 2581.
[8] Baublitz M Jr, Ruoff A L. J Appl Phys, 1982, 53: 6179.
[9] Froyen S, Cohen M L. Phys Rev B, 1983, 28: 3258.
[10] Bao Z X, Zhang Z T, Yu T N. Chin Sci Buil, 1984, 29(14): 846.
[11] Vohra Y K, Weir S T, Ruoff A L. Phys Rev B, 1985, 31: 7344.
[12] Zhang S B, Erskine D, Cohen M L, et al. Solid State Commun, 1989, 71: 369.
[13] Bao Z X, Schmidt V H. J Appl Phys, to be Published.
[14] Bao Z X, Dalai N S, Schmidt V H, et al. Bull Am Phys Soc, 1993, 38(1): 151.