Nonlinear Response of a Clean One-Dimensional Wire

R. de Picciotto, L. N. Pfeiffer, K. W. Baldwin, K. W. West

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We study nonlinear transport in a clean one-dimensional wire fabricated by cleaved edge overgrowth in molecular beam epitaxy. At low electron densities, and with a large applied bias, we observe a feature in the differential conductance similar to the so-called “0.7 structure,” found in quantum point contact devices. Using a simple model we suggest a link between this phenomenon, charge neutrality, and unidirectional dynamics in the wire.

Original languageEnglish (US)
Pages (from-to)4
Number of pages1
JournalPhysical review letters
Issue number3
StatePublished - 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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