Suppression of sequential tunneling current by a perpendicular magnetic field in a three-barrier, two-well heterostructure

被引：6

作者：

Ji, Y ^{[1
]}

Chen, YZ ^{[1
]}

Luo, KJ ^{[1
]}

Zheng, HZ ^{[1
]}

Li, YX ^{[1
]}

Li, CF ^{[1
]}

Cheng, WC ^{[1
]}

Yang, FH ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, Natl Lab Superlattices & Microstruct, Beijing 100083, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 1998年 / 72卷 / 25期

关键词：

D O I：

10.1063/1.121633

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

When an intersubband relaxation is involved in vertical transport in a tunneling heterostructure, the magnetic suppression of the intersubband LO or LA phonon scattering may also give rise to a noticeable depression of the resonant tunneling current, unrelated to the Coulomb correlation effect. The slowdown of the intersubband scattering rate makes fewer electrons able to tunnel resonantly between two adjacent quantum wells (QWs) in a three-barrier, two-well heterostructure. The influence of the magnetic field on the intersubband relaxation can be studied in an explicit way by a physical model based on the dynamics of carrier populations in the ground and excited subbands of the incident QW. (C) 1998 American Institute of Physics. [S0003-6951(98)00925-5].

引用

收藏

页码：3309 / 3311

页数：3

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