A new method of spin orientation is proposed in this work - the dynamic polarization of the spins of localized electrons interacting with nuclear spin fluctuations in a small magnetic field. It is shown that the dynamic polarization of electron spins has a number of advantages: it is realized in low magnetic fields, the direction of which can be easily changed; occurs with nonresonant and unpolarized excitation; does not depend on temperature, insofar as the main mechanism of electron spin relaxation is hyperfine interaction with nuclei; under optimal conditions, it achieves 100% spin polarization.
 A. V. Shchepetilnikov, D. D. Frolov, Yu. A. Nefyodov, I. V. Kukushkin, D. S. Smirnov, L. Tiemann, C. Reichl, W. Dietsche, and W. Wegscheider. Nuclear magnetic resonance and nuclear spin relaxation in AlAs quantum well probed by ESR. Phys. Rev. B 94, 241302(R) (2016).  M. S. Kuznetsova, J. Rautert, K. V. Kavokin, D. S. Smirnov, D. R. Yakovlev, A. K. Bakarov, A. K. Gutakovskii, T. S. Shamirzaev, and M. Bayer. Electron-nuclei interaction in the X valley of (In,Al)As/AlAs quantum dots. Phys. Rev. B 101, 075412 (2020).  D. S. Smirnov, T. S. Shamirzaev, D. R. Yakovlev, and M. Bayer. Dynamic Polarization of Electron Spins Interacting with Nuclei in Semiconductor Nanostructures. Phys. Rev. Lett. 125, 156801 (2020).
Smirnov, D. S.
"DYNAMIC POLARIZATION OF ELECTRONIC SPINS INTERACTING WITH NUCLEAR SPIN FLUCTUATIONS,"
Scientific-technical journal: Vol. 24
, Article 15.
Available at: https://uzjournals.edu.uz/ferpi/vol24/iss5/15