Vertical transport in GaAs/AlxGa1-xAs superlattices by a microwave time-of-flight technique

S. Khorram, J. Jo, K. L. Wang, T. Block, D. Streit

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Vertical transport in GaAs/AlxGa1-xAs superlattices is investigated by a microwave time-of-flight technique. The velocity-field characteristics obtained from the phase data exhibit three regions: a negative differential velocity region, an oscillatory velocity region, and an increasing velocity region. The oscillations are periodic in F-1. It is shown that the F-1 oscillations are related to the resonances between the Wannier-Stark states and the continuum states above the superlattice barriers.

Original languageEnglish
Pages (from-to)17614-17617
Number of pages4
JournalPhysical Review B
Volume51
Issue number24
DOIs
Publication statusPublished - 1995

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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