B.K. Chakraverty, R.W. Dreyfus
Journal of Applied Physics
Ground-state populations of cationic and neutral Y, Ba, Cu, and neutral YO, BaO, and CuO are monitored by laser-induced fluorescence during laser ablation of YBa2Cu3O7-. 193-nm photons completely dissociate CuO allowing the observation of a subsequent reaction of the Cu atom with O2 to form CuO. As a function of O2 pressure, the CuO signal increases to a maximum at approximately 120 mTorr of O2, presumably minimizing , and then falls to negligible levels by 400 mTorr. Ablation at 248 and 351 nm dissociates a smaller fraction of the CuO, i.e., nascent CuO is observed in the absence of O2. © 1991 The American Physical Society.
B.K. Chakraverty, R.W. Dreyfus
Journal of Applied Physics
Roger Kelly, R.W. Dreyfus
Surface Science
R.W. Dreyfus, Roger Kelly, et al.
Nuclear Inst. and Methods in Physics Research, B
R.W. Dreyfus
Applied Physics A Solids and Surfaces