[1] Chhowalla M, Robertson J, Chen C W, et al. J. Appl. Phys., 1997, 81: 139--145. [2] Junzo Ishikawa, Yasuhiko Takeiri, Kiyoshi Ogawa, et al. J. Appl. Phys., 1987, 61: 2509--2515. [3] Peeler D T, Murray P T. Diamond and Related Materials, 1994, 3: 1124--1127. [4] Lifshitz Y. Diamond and Related Materials, 1996, 5: 388--400. [5] Mckenzie D R, Muller D, Pailthorpe B A. Phys. Rev. Lett., 1991, 67: 773--776. [6] Gaskell P H, Saeed A, Chieux P, et al. Phys. Rev. Lett., 1991, 67: 1286--1289. [7] Richard Lossy, David L. Pappas, Ronnen A. Roy, et al. J. Appl. Phys., 1995, 77: 4750--4756. [8] Wei Aixiang, Chen Dihu, Peng Shaoqi, et al. Diamond and Related Materials, 1997, 6: 983--986. [9] Spaeth C, Kuhn M, Kreissig U, et al. Diamond and Related Materials, 1997, 6: 626--629. [10] Gilkes K W R, Sands H S, Batchelder D N, et al. Appl. Phys. Lett., 1997, 70: 1980--1982. [11] Merkulov V I, Lannin J S, Munro C H, et al. Phys. Rev. Lett., 1997, 78: 4869--4872. |