Anomalous-Filling-Factor-Dependent Nuclear-Spin Polarization in a 2D Electron System

DOI to cite this document:: 10.5283/epub.11499

Smet, J. H. ; Deutschmann, R. A. ; Ertl, F. ; Wegscheider, Werner ; Abstreiter, Gerhard ; Klitzing, Klaus von

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Date of publication of this fulltext: 15 Dec 2009 08:50

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Abstract

Spin-related electronic phase transitions in the fractional quantum Hall regime are accompanied by a large change in resistance. Combined with their sensitivity to spin orientation of nuclei residing in the same plane as the 2D electrons, they offer a convenient electrical probe to carry out nuclear magnetometry. Despite conditions which should allow both electronic and nuclear-spin subsystems to ...