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Coherent Precession of an Individual 5/2 Spin

M. Goryca, M. Koperski, P. Wojnar, T. Smoleński, T. Kazimierczuk, A. Golnik, and P. Kossacki
Phys. Rev. Lett. 113, 227202 – Published 25 November 2014
Physics logo See Synopsis: Observing the Precession of a Single Spin-5/2 Ion

Abstract

We present direct observation of a coherent spin precession of an individual Mn2+ ion, having both electronic and nuclear spins equal to 5/2, embedded in a CdTe quantum dot and placed in a magnetic field. The spin state evolution is probed in a time-resolved pump-probe measurement of absorption of the single dot. The experiment reveals subtle details of the large-spin coherent dynamics, such as nonsinusoidal evolution of states occupation, and beatings caused by the strain-induced differences in energy levels separation. Sensitivity of the large-spin impurity on the crystal strain opens the possibility of using it as a local strain probe.

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  • Received 8 August 2014

DOI:https://doi.org/10.1103/PhysRevLett.113.227202

© 2014 American Physical Society

Synopsis

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Observing the Precession of a Single Spin-5/2 Ion

Published 25 November 2014

Researchers observed the precession of an individual spin-5/2 ion in a quantum dot, a system that could store multiple bits for quantum computing.

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Authors & Affiliations

M. Goryca1,*, M. Koperski1, P. Wojnar2, T. Smoleński1, T. Kazimierczuk1, A. Golnik1, and P. Kossacki1

  • 1Institute of Experimental Physics, University of Warsaw, ul. Hoża 69, 00-681 Warszawa, Poland
  • 2Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-688 Warszawa, Poland

  • *Mateusz.Goryca@fuw.edu.pl

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Issue

Vol. 113, Iss. 22 — 28 November 2014

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