MODULATION OF SUPERLATTICE BAND-STRUCTURE VIA DELTA-DOPING

被引:34
作者
IHM, G [1 ]
NOH, SK [1 ]
LEE, JI [1 ]
HWANG, JS [1 ]
KIM, TW [1 ]
机构
[1] KWANGWOON UNIV,DEPT PHYS,SEOUL 139050,SOUTH KOREA
来源
PHYSICAL REVIEW B | 1991年 / 44卷 / 12期
关键词
D O I
10.1103/PhysRevB.44.6266
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A way of modulating superlattice band structure is presented utilizing a delta-doping technique. Enormous changes in the electronic states of a superlattice can be made by introducing spatially localized defects with a periodic array in the well layers as well as in the barrier layers of a superlattice. Along with an analytic energy dispersion relation, it is shown that the creation of a band or the annihilation of a given band and the control on the miniband gap, band positions, and their widths are now possible by adjusting the weight and the position of the inserted defects.
引用
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页码:6266 / 6269
页数:4
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