赝势（pseudopotential），或有效势（effective potential），是指在对能带结构进行数值计算时所引入的一个虚拟的势。
本文首先在标量场论的情形下，用最速下降法对有效势的泛函形式作了简要的评论。
The functional formalism for the effective potential is briefly reviewed for the case of a scalar field theory by using the method of steepest descents.
采用梯形势垒模型计算伏安特性，并与实验伏安特性拟合，得到了结的有效势垒参数。
Effective barrier parameters were obtained by fitting the theoretical curves based on the trapezoidal barrier potential model to the experimental ones.
结果表明，与界面光滑的结比较，界面粗糙的结的有效势垒宽度较窄，有效势垒面积较小。
The results showed that the effective barrier width and area of the junction with the rough interfaces were smaller than those of the junction with the smooth interfaces.
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