Strain-induced enhancement of electric quadrupole splitting in resistively detected nuclear magnetic resonance spectrum in quantum Hall systems

M. Kawamura, Tadahiro Yamashita, H. Takahashi, S. Masubuchi, Y. Hashimoto, S. Katsumoto, T. MacHida

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We show electrical coherent manipulation of quadrupole-split nuclear spin states in a GaAs/AlGaAs heterostructure on the basis of the breakdown of quantum Hall effect. The electric quadrupole splitting in nuclear spin energy levels is intentionally enhanced by applying an external stress to the heterostructure. Nuclear magnetic resonance spectra with clearly separated triple peaks are obtained, and Rabi oscillations are observed between the nuclear spin energy levels. The decay of the spin-echo signal is compared between the cases before and after the enhancement of quadrupole splitting.

Original languageEnglish
Article number032102
JournalApplied Physics Letters
Issue number3
Publication statusPublished - 2010 Mar 29
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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