STEP-BY-STEP EVOLUTION FROM FRANZ-KELDYSH OSCILLATIONS TO STARK-WANNIER CONFINEMENT IN AN IN0.12GA0.88AS/GAAS SUPERLATTICE

被引：9

作者：

RIBEIRO, E ^{[1
]}

CERDEIRA, F ^{[1
]}

ROTH, AP ^{[1
]}

机构：

[1] NATL RES COUNCIL CANADA,INST MICROSTRUCT SCI,OTTAWA K1A 0R6,ONTARIO,CANADA

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.46.12542

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report 77-K modulated transmission measurements on an In0.12Ga0.88As/GaAs 100-angstrom-period superlattice as a function of a variable, uniform, external dc field. The spectra evolve continuously as the field increases from a Franz-Keldysh regime to Stark-Wannier confinement, passing through an intermediate-field region whose precise theoretical description has not yet been formulated. In this way the step-by-step evolution of the electronic states as a function of the external field has been documented.

引用

页码：12542 / 12546

页数：5

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