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Equilibration Length of Electrons in Spin Polarized Edge Channels

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Müller, G. ; Weiss, Dieter ; Khaetskii, A. V. ; Klitzing, Klaus von ; Koch, S. ; Nickel, H. ; Schlapp, W. ; Lösch, R.
Date of publication of this fulltext: 05 Aug 2009 13:57


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 ìm and 1 mm are found. The ...


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