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Title: Bias voltage dependence of the electron spin depolarization in quantum wires in the quantum Hall regime detected by the resistively detected NMR

We performed the resistively-detected nuclear magnetic resonance (RDNMR) to study the electron spin polarization in the non-equilibrium quantum Hall regime. By measuring the Knight shift, we derive source-drain bias voltage dependence of the electron spin polarization in quantum wires. The electron spin polarization shows minimum value around the threshold voltage of the dynamic nuclear polarization.
Authors:
; ; ; ;  [1] ;  [2] ;  [3] ;  [4]
  1. Institute for Chemical Research, Kyoto University, Kyoto (Japan)
  2. Institute for Chemical Research, Kyoto University, Kyoto, Japan and Department of Physics, Tokyo Institute of Technology, Tokyo (Japan)
  3. Institute for Chemical Research, Kyoto University, Kyoto, Japan and AIST, Tsukuba (Japan)
  4. IIS and INQIE, University of Tokyo (Japan)
Publication Date:
OSTI Identifier:
22261820
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1566; Journal Issue: 1; Conference: ICPS 2012: 31. international conference on the physics of semiconductors, Zurich (Switzerland), 29 Jul - 3 Aug 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DEPOLARIZATION; ELECTRIC POTENTIAL; ELECTRONS; KNIGHT SHIFT; NUCLEAR MAGNETIC RESONANCE; POLARIZATION; QUANTUM WIRES; SPIN ORIENTATION