Study of nuclear quadrupolar interaction using a novel all-electrical GaAs NMR device

T. Ota, N. Kumada, G. Yusa, S. Miyashita, Y. Hirayama

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)

Abstract

We study the nuclear quadrupolar interaction using a resistively-detected NMR device. The nuclear spins are dynamically polarized in a sub-micron scale region defined by split gates. In pulsed NMR spectra for 69Ga and 75As nuclei, three distinct peaks are observed. The peak splitting depends on the electric quadrupolar coupling constant EQ. By comparing the spectra of both nuclei, we find that the relative peak intensity is opposite, which is independent of the condition for the dynamic nuclear spin polarization. This result indicates that the electric-field gradient in E Q has opposite sign at 69Ga and 75As nuclear site.

Original languageEnglish
Pages (from-to)1759-1762
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume4
Issue number5
DOIs
Publication statusPublished - 2007 Dec 1
Event33rd International Symposium on Compound Semiconductors, ISCS-2006 - Vancouver, BC, Canada
Duration: 2006 Aug 132006 Aug 17

ASJC Scopus subject areas

  • Condensed Matter Physics

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