Dynamic Polarization of Electron Spins Interacting with Nuclei in Semiconductor Nanostructures

Smirnov, D. S.; Shamirzaev, T. S.; Yakovlev, D. R.; Bayer, M.

doi:10.1103/PhysRevLett.125.156801

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Поле DC	Значение	Язык
dc.contributor.author	Smirnov, D. S.	en
dc.contributor.author	Shamirzaev, T. S.	en
dc.contributor.author	Yakovlev, D. R.	en
dc.contributor.author	Bayer, M.	en
dc.date.accessioned	2022-05-12T08:18:45Z	-
dc.date.available	2022-05-12T08:18:45Z	-
dc.date.issued	2020	-
dc.identifier.citation	Dynamic Polarization of Electron Spins Interacting with Nuclei in Semiconductor Nanostructures / D. S. Smirnov, T. S. Shamirzaev, D. R. Yakovlev et al. // Physical Review Letters. — 2020. — Vol. 125. — Iss. 15. — 156801.	en
dc.identifier.issn	0031-9007	-
dc.identifier.other	All Open Access, Green	3
dc.identifier.uri	http://elar.urfu.ru/handle/10995/111526	-
dc.description.abstract	We suggest a new spin orientation mechanism for localized electrons: Dynamic electron spin polarization provided by nuclear spin fluctuations. The detrimental effect of nuclear spin fluctuations can be harnessed and employed to provide angular momentum for the electrons via the hyperfine interaction in a weak magnetic field. For this, the sample is illuminated by an unpolarized light, which directly polarizes neither the electrons nor the nuclei. We predict that, for the electrons bound in localized excitons, 100% spin polarization can be reached in longitudinal magnetic fields of a few millitesla. The proof of principle experiment is performed on momentum-indirect excitons in (In,Al)As/AlAs quantum dots, where in a magnetic field of 17 mT the electron spin polarization of 30% is measured. © 2020 American Physical Society.	en
dc.description.sponsorship	We thank E. L. Ivchenko with M. M. Glazov for fruitful discussions, J. Rautert with D. Kudlacik for technical support, RF President Grant No. MK-1576.2019.2, and the Foundation for the Advancement of Theoretical Physics and Mathematics “BASIS.” This work was supported by the Deutsche Forschungsgemeinschaft via the Project No. 409810106 and by the Russian Foundation for Basic Research Grant No. 19-52-12001. T. S. S. acknowledges the financial support by the Russian Foundation for Basic Research (Grant No. 19-02-00098) and by the Act 211 Government of the Russian Federation (Contract No. 02.A03.21.0006). Government of the Russian Federation also supports this work via Grant No. AAAA-A17-117042110141-5. The theoretical studies by D. S. S. were supported by the Russian Science Foundation (Grant No. 19-72-00081). M. B. acknowledges support by the Deutsche Forschungsgemeinschaft (TRR 160, project A1).	en
dc.format.mimetype	application/pdf	en
dc.language.iso	en	en
dc.publisher	American Physical Society	en1
dc.publisher	American Physical Society (APS)	en
dc.relation	info:eu-repo/grantAgreement/RSF//19-72-00081	en
dc.rights	info:eu-repo/semantics/openAccess	en
dc.source	Phys Rev Lett	2
dc.source	Physical Review Letters	en
dc.subject	ELECTROSPINNING	en
dc.subject	EXCITONS	en
dc.subject	MAGNETIC FIELDS	en
dc.subject	MAGNETIC MOMENTS	en
dc.subject	SEMICONDUCTOR QUANTUM DOTS	en
dc.subject	SPIN FLUCTUATIONS	en
dc.subject	SPIN POLARIZATION	en
dc.subject	DYNAMIC POLARIZATION	en
dc.subject	ELECTRON SPIN POLARIZATION	en
dc.subject	HYPERFINE INTERACTIONS	en
dc.subject	LOCALIZED ELECTRONS	en
dc.subject	LONGITUDINAL MAGNETIC FIELDS	en
dc.subject	PROOF-OF-PRINCIPLE EXPERIMENTS	en
dc.subject	SEMICONDUCTOR NANOSTRUCTURES	en
dc.subject	WEAK MAGNETIC FIELDS	en
dc.subject	ELECTRONS	en
dc.title	Dynamic Polarization of Electron Spins Interacting with Nuclei in Semiconductor Nanostructures	en
dc.type	Article	en
dc.type	info:eu-repo/semantics/article	en
dc.type	info:eu-repo/semantics/submittedVersion	en
dc.identifier.doi	10.1103/PhysRevLett.125.156801	-
dc.identifier.scopus	85093363975	-
local.contributor.employee	Smirnov, D.S., Ioffe Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russian Federation; Shamirzaev, T.S., Rzhanov Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation, Ural Federal University, Yekaterinburg620002, Russian Federation; Yakovlev, D.R., Ioffe Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russian Federation, Experimentelle Physik 2, Technische Universität Dortmund, Dortmund, 44221, Germany; Bayer, M., Ioffe Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russian Federation, Experimentelle Physik 2, Technische Universität Dortmund, Dortmund, 44221, Germany	en
local.issue	15	-
local.volume	125	-
local.contributor.department	Ioffe Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russian Federation; Rzhanov Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation; Ural Federal University, Yekaterinburg620002, Russian Federation; Experimentelle Physik 2, Technische Universität Dortmund, Dortmund, 44221, Germany	en
local.identifier.pure	14159185	-
local.description.order	156801	-
local.identifier.eid	2-s2.0-85093363975	-
local.fund.rsf	19-72-00081	-
local.fund.rffi	19-52-12001	-
local.fund.rffi	19-02-00098	-
local.identifier.pmid	33095603	-
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