Activated Transport in Magnetic-Field Induced Insulating Phase in Two-Dimensional Electron Gas in InGaAs/InP Heterostructures

• Authors: B. Pődör , G. Gombos , G. Reményi , Gy. Kovács , I G Savel'ev , S.V. Novikov
• Languages of publication: EN

Abstracts

EN

We report on experiments on low temperature (millikelvin range) activated magnetotransport on low-density two-dimensional electron systems in InGaAs/InP for Landau level filling factors 0.25 ≤ ν ≤ 0.55. The activation energy increases approximately linearly with decreasing filling factor. The observations are discussed in the light of the formation of the Wigner solid.

Keywords

EN

73.20.Dx

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 92
• Issue: 5
• Pages: 945-949

Dates

published

1997-11

Contributors

author

B. Pődör

• Research Institute for Technical Physics of the Hungarian Academy of Sciences Budapest, Hungary

author

G. Gombos

• Research Institute for Technical Physics of the Hungarian Academy of Sciences Budapest, Hungary

author

G. Reményi

• CNRS Centre de Recherche sur les Tres Basses Températures et Laboratoire des Champs Magnétiques Intenses, Grenoble, France

author

Gy. Kovács

• Applied Physics Research Group, Department of General Physics, Loránd Eötvös University, Budapest, Hungary

author

I G Savel'ev

• Ioffe Physical-Technical Institute of the Russian Academy of Sciences, St. Petersburg, Russia

author

S.V. Novikov

• Ioffe Physical-Technical Institute of the Russian Academy of Sciences, St. Petersburg, Russia