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

Autor:	Kawamura, Minoru, Yamashita, Tatsuya, Takahashi, Hiroyuki, Masubuchi, Satoru, Hashimoto, Yoshiaki, Katsumoto, Shingo, Machida, Tomoki
Rok vydání:	2009
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	Appl. Phys. Lett. 96, 032102 (2010)
Druh dokumentu:	Working Paper
DOI:	10.1063/1.3291618
Popis:	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. Comment: 4 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0912.4313 Zobrazit plný text záznamu View this record from Arxiv