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

Journal Article · Wed Dec 04 00:00:00 EST 2013 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4848394· OSTI ID:22261820

Chida, K.; Yamauchi, Y.; Arakawa, T.; Kobayashi, K.; Ono, T. ^[1]; Hashisaka, M. ^[2]; Nakamura, S. ^[3]; Machida, T. ^[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)

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.

• OSTI ID: 22261820
• Journal Information: AIP Conference Proceedings, Vol. 1566, 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); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DEPOLARIZATION
ELECTRIC POTENTIAL
ELECTRONS
KNIGHT SHIFT
NUCLEAR MAGNETIC RESONANCE
POLARIZATION
QUANTUM WIRES
SPIN ORIENTATION