Interaction effects and pseudogap in two-dimensional lateral tunnel junctions

P. Jiang, I. Yang, W. Kang, L. N. Pfeiffer, K. W. Baldwin, K. W. West

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Tunneling characteristics of a two-dimensional lateral tunnel junction are reported. A pseudogap on the order of Coulomb energy is detected in the tunneling density of states (TDOS) when two identical two-dimensional electron systems are laterally separated by a thin energy barrier. The Coulombic pseudogap remains robust well into the quantum Hall regime until it is overshadowed by the cyclotron gap in the TDOS. The pseudogap is modified by the in-plane magnetic field, demonstrating a nontrivial effect of the in-plane magnetic field on the electron-electron interaction.

Original languageEnglish
Article number126804
JournalPhysical Review Letters
Volume96
Issue number12
DOIs
Publication statusPublished - 2006 Apr 3

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tunnel junctions
Electrons
Magnetic Fields
Cyclotrons
interactions
magnetic fields
cyclotrons
electron scattering
electrons
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Interaction effects and pseudogap in two-dimensional lateral tunnel junctions. / Jiang, P.; Yang, I.; Kang, W.; Pfeiffer, L. N.; Baldwin, K. W.; West, K. W.

In: Physical Review Letters, Vol. 96, No. 12, 126804, 03.04.2006.

Research output: Contribution to journalArticle

Jiang, P. ; Yang, I. ; Kang, W. ; Pfeiffer, L. N. ; Baldwin, K. W. ; West, K. W. / Interaction effects and pseudogap in two-dimensional lateral tunnel junctions. In: Physical Review Letters. 2006 ; Vol. 96, No. 12.
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