Multi-terminal ballistic transport in one-dimensional wires

R. De Picciotto, H. L. Stormer, A. Yacoby, K. W. Baldwin, L. N. Pfeiffer, K. W. West

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations


Recent experiments have shown non-universal conductance quantization in one-dimensional wires that are fabricated using the cleaved edge overgrowth technique. In one of the papers, it was speculated that the origin of the reduced conductance lies in the interface between the one-dimensional wire and the two-dimensional electron gas regions, which serve as ohmic contacts and thermal reservoirs. Here we report the results of a systematic study of such 2D-1D interfaces. By embedding a 2D-1D interaction section region of controllable length inside an otherwise isolated wire, we were able to study the properties of the coupling between these two subsystems. Our results show that 2D-1D interface is in fact the origin of the non-universal conductance.

Original languageEnglish (US)
Pages (from-to)514-517
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Issue number1
StatePublished - Feb 2000
Externally publishedYes
Event13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13) - Ottawa, Ont, Can
Duration: Aug 1 1999Aug 6 1999

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics


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