Effects of Coulomb interaction in intentionally disordered semiconductor superlattices

G. Richter, W. Stolz, P. Thomas, Stephan W Koch, K. Maschke, I. P. Zvyagin

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The interplay between disorder and electron-electron interaction is studied using measurements of the vertical dc conductivity of intentionally disordered GaAs/Al0.3Ga0.7As superlattices. At low temperatures a quasimetallic behavior is observed even for large disorder which is attributed to an inhomogeneous charge distribution reducing the disorder potential. At low doping levels and low temperatures, exchange-correlation interaction leads to an inhomogeneous charge distribution over the wells of ordered superlattices similar to a one-dimensional Wigner lattice.

Original languageEnglish (US)
Pages (from-to)475-480
Number of pages6
JournalSuperlattices and Microstructures
Volume22
Issue number4
DOIs
StatePublished - 1997
Externally publishedYes

Fingerprint

Semiconductor superlattices
Charge distribution
Superlattices
Coulomb interactions
superlattices
disorders
Electron-electron interactions
charge distribution
Crystal lattices
Doping (additives)
interactions
Temperature
electron scattering
conductivity
electrons
temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Effects of Coulomb interaction in intentionally disordered semiconductor superlattices. / Richter, G.; Stolz, W.; Thomas, P.; Koch, Stephan W; Maschke, K.; Zvyagin, I. P.

In: Superlattices and Microstructures, Vol. 22, No. 4, 1997, p. 475-480.

Research output: Contribution to journalArticle

Richter, G. ; Stolz, W. ; Thomas, P. ; Koch, Stephan W ; Maschke, K. ; Zvyagin, I. P. / Effects of Coulomb interaction in intentionally disordered semiconductor superlattices. In: Superlattices and Microstructures. 1997 ; Vol. 22, No. 4. pp. 475-480.
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