Equilibration length of electrons in spin-polarized edge channels

G. M̈ller, D. Weiss, A. V. Khaetskii, K. Von Klitzing, S. Koch, H. Nickel, W. Schlapp, R. Lösch

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Abstract

We investigate experimentally the mean free path of electrons injected selectively into the outer spin-polarized edge channel of the lowest Landau level. A simple model allows us to determine the characteristic length between two spin-flip scattering events directly from the measured resistance plateaus. Typical spin-flip equilibration lengths between 100 1/4m and 1 mm are found. The size of the observed equilibration lengths is interpreted in terms of the spin-orbit interaction, which also leads to a local g-factor enhancement at the edge.

Original languageEnglish (US)
Pages (from-to)3932-3935
Number of pages4
JournalPhysical Review B
Volume45
Issue number7
DOIs
StatePublished - Jan 1 1992

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ASJC Scopus subject areas

  • Condensed Matter Physics

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M̈ller, G., Weiss, D., Khaetskii, A. V., Von Klitzing, K., Koch, S., Nickel, H., Schlapp, W., & Lösch, R. (1992). Equilibration length of electrons in spin-polarized edge channels. Physical Review B, 45(7), 3932-3935. https://doi.org/10.1103/PhysRevB.45.3932