Giant magnetic suppression of tunneling out of a 2D electron system

L. Menna, S. Yücel, E. Y. Andrei

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

We have measured tunneling rates out of an electron layer trapped at a liquid-heliumvacuum interface in the presence of a magnetic field. When the field is transverse to the escape direction we find a striking suppression of the tunneling rates: a field of 3000 G at 40 mK reduces the tunneling current by four orders of magnitude. As the temperature increases the magnetic suppression of tunneling diminishes until it disappears completely above 250 mK. By contrast parallel fields have no effect on the tunneling rates.

Original languageEnglish (US)
Pages (from-to)2154-2157
Number of pages4
JournalPhysical review letters
Volume70
Issue number14
DOIs
StatePublished - 1993

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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