COUPLING BETWEEN TAU-TYPE AND X-TYPE ENVELOPE FUNCTIONS AT GAAS/AL(GA)AS INTERFACES

被引:14
作者
CUYPERS, JP
VANHAERINGEN, W
机构
[1] Department of Physics, Eindhoven University of Technology, 5600 MB Eindhoven
来源
PHYSICAL REVIEW B | 1993年 / 48卷 / 15期
关键词
D O I
10.1103/PhysRevB.48.11469
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Connection rules for envelope functions related to the GAMMA- and X-point conduction-band valleys in GaAs/Al(Ga)As systems are formulated in terms of a transfer matrix. The transfer-matrix elements are calculated using a method in which wave functions, which are obtained using empirical pseudopotentials, are matched at the interface. The nonzero transfer-matrix elements appear to depend weakly on energy which enables us to give a simple prescription for connection rules for envelope functions in which r-x coupling is incorporated.
引用
收藏
页码:11469 / 11472
页数:4
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