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arXiv · 1408.2263

Coherent precession of an individual 5/2 spin

M. Goryca·M. Koperski·P. Wojnar·T. Smoleński·T. Kazimierczuk·A. Golnik·P. Kossacki
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Abstract

We present a direct observation of a coherent spin precession of an individual Mn$^{2+}$ ion, having both electronic and nuclear spins equal to 5/2, embedded in a CdTe quantum dot and placed in 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 non-sinusoidal 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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M. Goryca, M. Koperski, P. Wojnar, T. Smoleński, T. Kazimierczuk, A. Golnik, P. Kossacki. 2014-08-10. Coherent precession of an individual 5/2 spin. https://doi.org/10.1103/physrevlett.113.227202

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