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Condensed Matter > Mesoscale and Nanoscale Physics

arXiv:1103.3249 (cond-mat)
[Submitted on 16 Mar 2011 (v1), last revised 14 Jan 2012 (this version, v2)]

Title:Electron spin synchronization induced by optical nuclear magnetic resonance feedback

Authors:M.M. Glazov, I.A. Yugova, Al.L. Efros
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Abstract:We predict a new physical mechanism explaining the electron spin precession frequency focusing effect observed recently in singly charged quantum dots exposed to a periodic train of resonant circularly polarized short optical pulses [A. Greilich et al, Science 317, 1896 (2007), Ref. 1]. We show that electron spin precession in an external magnetic field and a field of nuclei creates a Knight field oscillating at the frequency of nuclear spin resonance. This field drives the projection of the nuclear spin onto magnetic field to the value that makes the electron spin precession frequency a multiple of the train cyclic repetition frequency, which is the condition at which the Knight field vanishes.
Comments: 4+ pages, 3 figures
Subjects: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Cite as: arXiv:1103.3249 [cond-mat.mes-hall]
  (or arXiv:1103.3249v2 [cond-mat.mes-hall] for this version)
  https://doi.org/10.48550/arXiv.1103.3249
Journal reference: Phys. Rev. B 85, 041303(R) (2012)
Related DOI: https://doi.org/10.1103/PhysRevB.85.041303

Submission history

From: M. M. Glazov [view email]
[v1] Wed, 16 Mar 2011 18:28:24 UTC (285 KB)
[v2] Sat, 14 Jan 2012 06:33:42 UTC (292 KB)
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