作者: Cheng Yang , S. Y. Lee , H. Chuan Kang
DOI: 10.1063/1.474680
关键词: Silicon 、 Cluster (physics) 、 Surface (mathematics) 、 Ground state 、 Density functional theory 、 Slab 、 Buckling 、 Atomic physics 、 Chemistry 、 Relaxation (physics)
摘要: Both Si9H12 and Si15H16 cluster models for the Si(100) surface were studied using Hartree–Fock molecular-orbital method density functional theory. Our investigation shows that ground state of consists buckled dimers, contrary to results a number previous embedded calculations, but in agreement with some recent slab calculations. The relaxation constraints used studies probably do not model layers adequately.