Scientific-technical journal


The paper proposes a method for controlling the spin state of color centers based on their interaction with acoustic vibrations. An effective Hamiltonian is constructed that describes the interaction of spin 3/2 defects with lattice vibrations in the spherical approximation. It was used to calculate the spin-lattice relaxation times in a bulk crystal due to single-phonon and Raman processes. From their comparison with the experimentally measured temperature dependence of the spin relaxation rate, the constant of deformation spin-lattice interaction is determined.

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[1]. V. A. Soltamov, C. Kasper, A.V. Poshakinskiy, A.N. Anisimov, E.N. Mokhov, A. Sperlich, S.A. Tarasenko, P.G. Baranov, G.V. Astakhov, V. Dyakonov, Nature Commun. 10, 1678 (2019). [2]. A.V. Poshakinskiy and G.V. Astakhov, Phys. Rev. B 100, 094104 (2019). [3]. A. Hernández-Mínguez, A.V. Poshakinskiy, M. Hollenbach, P.V. Santos, and G.V. Astakhov, Phys. Rev. Lett. 125, 107702 (2020).



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