Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-12-22
Appl. Phys. Lett. 96, 032102 (2010)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
4 pages, 4 figures
Scientific paper
10.1063/1.3291618
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.
Hashimoto Yoshiaki
Katsumoto Shingo
Kawamura Minoru
Machida Tomoki
Masubuchi Satoru
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