D. H. Zhang

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A full quantum dynamical study of the reactions of a hydrogen atom with water, on an accurate ab initio potential energy surface, is reported. The theoretical results are compared with available experimental data for the exchange and abstraction reactions in H + D2O and H + H2O. Clear agreement between theory and experiment is revealed for available thermal(More)
Reserve Bank of Boston for most helpful discussions and comments. COMPENSATION VEGA AND COMPETITION 2 Abstract We analyze how stock options compensation vega can be used as a commitment device in oligopolistic competition. We develop a two period model where shareholders structure managerial compensation to commit their managers to being risk-taking in(More)
InSbN alloys are the new narrow bandgap semiconductors capable of broadband and long wavelength infrared photodetection. This paper reports the annealing conditions on the properties and quality of InSbN alloys, fabricated by multi-step ion implantation. The InSbN samples were annealed at different annealing methods, temperatures, and periods of time. They(More)
Three advanced direct contact via processes with Ta/TaN/Ta tri-layer barrier and the electromigration of their structures were comparatively investigated. The process of Ar<sup>+</sup> resputtering with median removal of tri-layer barrier shows the lowest defective die percentage. It also shows the highest activation energy and longest downstream(More)
We report the effect of a Ta/TaN/SiCN tri-layer barrier on the electrical properties and thermal stability of single damascene (SD) lines for Cu-ultra low k (2.3) integration. It was found that by incorporating a thin SiCN layer between the Ta/TaN barrier and ultra low k material, the leakage current can be significantly reduced and the breakdown voltage(More)
First observation of J/ψ and ψ(2S) decaying to nK 0 S ¯ Λ + c.c. The decays of J/ψ and ψ(2S) to nK 0 S ¯ Λ + c.c. are observed and measured for the first time, and the perturbative QCD " 12% " rule is tested, based on 5.8 × 10 7 J/ψ and 1.4 × 10 7 ψ(2S) events collected with BESII detector at the Beijing Electron-Positron Collider. No obvious enhancement(More)