Stabilizing effect of nuclear quadrupole interaction on the polarization of electron-nuclear spin system in a quantum dot

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dc.creatorDzhioev, R. I.
dc.creatorKorenev, V. L.
dc.date2007-02-01
dc.date2007-06-09
dc.date.accessioned2026-07-07T09:29:28Z
dc.date.available2026-07-07T09:29:28Z
dc.descriptionNuclear quadrupole interaction extends the limits imposed by hyperfine interaction on the spin coherence of the electron and nuclei in a quantum dot. The strain-induced nuclear quadrupole interaction suppresses the nuclear spin flip and makes possible the zero-field dynamic nuclear polarization in self-organized InP/InGaP quantum dots. The direction of the effective nuclear magnetic field is fixed in space, thus quenching the magnetic depolarization of the electron spin in the quantum dot. The quadrupole interaction suppresses the zero-field electron spin decoherence also for the case of non-polarized nuclei. These results provide a new vision of the role of the nuclear quadrupole interaction in nanostructures: it elongates the spin memory of the electron-nuclear system.
dc.description18 pages including 3 figures. Shortened version has been accepted for publication in Physical Review Letters
dc.identifierhttps://arxiv.org/abs/cond-mat/0702010
dc.identifierhttp://arxiv.org/abs/cond-mat/0702010
dc.identifierPhysical Review Letters 99 037401 (2007)
dc.identifierdoi:10.1103/PhysRevLett.99.037401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/157798
dc.subjectMesoscale and Nanoscale Physics
dc.titleStabilizing effect of nuclear quadrupole interaction on the polarization of electron-nuclear spin system in a quantum dot
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