图3 Kronig-Penney模型的 E-k曲线(粗实线),虚线为自由电子模型的结果Fig.3 the E versus k diagram(thick line)of the Kronig-Penney model generated from Fig.2.the dashed curve is the result of free electron model 在本算例中,从下至上,三个禁带的宽度分别是12.3428,15.5288和 16.9729,即禁带宽度是随...