Ab initio calculations are performed, using a slabmodel with 6 atom-layers, to investigate the character of clean surface, surface with vacancy.
利用第一性原理赝势法，采用6层原子层的层晶模型研究了完整铜表面、含空位缺陷表面的性质。
2
The transcendental equation for the single toroidal non-reciprocal ferrite phase shifter is obtained by using the twin slabmodel, and its properties are discussed.
利用双平板模型推导出了单环非互易铁氧体移相器的超越方程，并对其特性进行了讨论。
3
The transcendental equation for ferrite phase shifters in rectangular wave guide has been obtained by applying twin slabmodel, Maxwell equations and boundary conditions.