期刊论文详细信息
Multilayer structural determination of the GaAs((1)over-bar(1)over-bar(1)over-bar)2x2 reconstruction by automated tensor LEED | |
Article | |
关键词: PLANE-WAVE METHOD; ATOMIC-STRUCTURE; SURFACE; GAAS(111); MODEL; | |
DOI : 10.1103/PhysRevB.59.9775 | |
来源: SCIE |
【 摘 要 】
The multilayer atomic coordinates for the GaAs((1) over bar (1) over bar (1) over bar)(2 x2) surface have been determined using automated tensor low-energy electron diffraction. The results confirm the As adatom trimer model found by total-energy calculations and scanning tunneling microscopy studies although details of the displacements are different. The low-energy electron diffraction analysis, being sensitive to multilayer spacings in the surface region, shows that substantial subsurface relaxations are present. [S0163-1829(99)15115-4].
【 授权许可】
Free