Nuclear spin coherence time in a strained GaAs quantum well

M. Ono, G. Sato, J. Ishihara, S. Matsuzaka, Y. Ohno, Hideo Ohno

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We investigated the quadrupolar splitting dependence of the nuclear spin coherence time in an n-(110)GaAs/AlGaAs quantum well by time-resolved Kerr-rotation measurements combined with pulsed-rf nuclear magnetic resonance. In GaAs, all the constituent nuclei have quadrupole moment. Therefore the quadrupolar splitting is induced by electric field gradient, which can be controlled by varying strain. We found that the nuclear spin coherence time is extended as the quadrupolar splitting increases by applying the strain. This suggests that the influences of the other transitions are suppressed with increase of the quadrupolar splitting.

Original languageEnglish
Title of host publicationPhysics of Semiconductors - 30th International Conference on the Physics of Semiconductors, ICPS-30
Pages685-686
Number of pages2
DOIs
Publication statusPublished - 2011 Dec 1
Event30th International Conference on the Physics of Semiconductors, ICPS-30 - Seoul, Korea, Republic of
Duration: 2010 Jul 252010 Jul 30

Publication series

NameAIP Conference Proceedings
Volume1399
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other30th International Conference on the Physics of Semiconductors, ICPS-30
CountryKorea, Republic of
CitySeoul
Period10/7/2510/7/30

Keywords

  • Nuclear magnetic resonance
  • Quadrupole interaction
  • Semiconductor spintronics
  • Spin coherence

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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