Accession Number:

ADA459984

Title:

The Effect of Temperature on the Resonant Tunneling and Electric Field Domain Formation in Multiple Quantum Well Superlattices

Descriptive Note:

Journal article

Corporate Author:

CALIFORNIA INST OF TECH PASADENA DEPT OF APPLIED PHYSICS

Report Date:

1997-02-15

Pagination or Media Count:

4.0

Abstract:

Analyzing the photocurrent spectra and the I-V characteristics of weakly coupled GaAsAlGaAs multiquantum well structures, different transport regimes are distinguished. At low temperatures below 50 K, due to the electron coherence over a few periods of the superlattice, electron transport is dominated by sequential resonant tunneling. At higher temperatures, evidences for the increased contribution of nonresonant transport processes, and the subsequent modification in the electric field distribution in the device, are presented.

Subject Categories:

  • Crystallography
  • Quantum Theory and Relativity

Distribution Statement:

APPROVED FOR PUBLIC RELEASE