85 citations · 380 across the 17 of their papers we have counts for
13 papers · 1 filter
Optical cooling of nuclear spins in GaAs/(Al,Ga)As quantum wells at subkelvin temperatures: Evidence of the dynamic self-polarization of nuclear spins
M. Kotur, D. Kudlacik, N. E. Kopteva +4
We investigate the dynamic polarization of nuclear spins in a nominally undoped GaAs/AlGaAs quantum well using two complementary experimental approaches: time-res…
Coherent spin dynamics of electrons and holes photogenerated with large kinetic energy in lead halide perovskite crystals
Evgeny A. Zhukov, Dmitri R. Yakovlev, Erik Kirstein +4
The coherent spin dynamics of electrons and holes are studied in a FA0.9Cs0.1PbI2.8Br0.2 perovskite bulk crystal, using time-resolved Kerr ellipticity in a two-color pump-probe sch…
Giant optical orientation of exciton spins in lead halide perovskite crystals
Natalia E. Kopteva, Dmitri R. Yakovlev, Eyüp Yalcin +11
Optical orientation of carrier spins by circularly polarized light is the basis of spin physics in semiconductors. Here, we demonstrate strong optical orientation of 85\%, approach…
Tailoring the electron and hole Landé factors in lead halide perovskite nanocrystals by quantum confinement and halide exchange
M. O. Nestoklon, Erik Kirstein, D. R. Yakovlev +7
The tunability of the optical properties of lead halide perovskite nanocrystals makes them highly appealing for applications. Both, halide anion exchange and quantum confinement pa…
Spin-Flip Raman Scattering on Electrons and Holes in Two-Dimensional (PEA)PbI Perovskites
C. Harkort, D. Kudlacik, N. E. Kopteva +6
The class of Ruddlesden-Popper type (PEA)PbI perovskites comprises two-dimensional (2D) structures whose optical properties are determined by excitons with a large binding…
Weak dispersion of exciton Landé factor with band gap energy in lead halide perovskites: Approximate compensation of the electron and hole dependences
N. E. Kopteva, D. R. Yakovlev, E. Kirstein +11
The photovoltaic and optoelectronic properties of lead halide perovskite semiconductors are controlled by excitons, so that investigation of their fundamental properties is of crit…
Mode locking of hole spin coherences in CsPb(Cl,Br) perovskite nanocrystals
E. Kirstein, N. E. Kopteva, D. R. Yakovlev +8
The spin physics of perovskite nanocrystals with confined electrons or holes is attracting increasing attention, both for fundamental studies and spintronic applications. Here, sta…
Spin polarization recovery and Hanle effect for charge carriers interacting with nuclear spins in semiconductors
D. S. Smirnov, E. A. Zhukov, D. R. Yakovlev +3
We report on theoretical and experimental study of the spin polarization recovery and Hanle effect for the charge carriers interacting with the fluctuating nuclear spins in the sem…
Voltage control of the long-range p-d exchange coupling in a ferromagnet-semiconductor quantum well hybrid structure
V. L. Korenev, I. V. Kalitukha, I. A. Akimov +14
Voltage control of ferromagnetism on the nanometer scale is highly appealing for the development of novel electronic devices. Here a key challenge is to implement and combine low p…
Spin Inertia of Resident and Photoexcited Carriers in Singly-Charged Quantum Dots
E. A. Zhukov, E. Kirstein, D. S. Smirnov +6
The spin dynamics in a broad range of systems can be studied using circularly polarized optical excitation with alternating helicity. The dependence of spin polarization on the fre…
Theory of spin inertia in singly-charged quantum dots
D. S. Smirnov, E. A. Zhukov, E. Kirstein +6
The spin inertia measurement is a recently emerged tool to study slow spin dynamics, which is based on the excitation of the system by a train of circularly polarized pulses with a…
Dynamics of nuclear spin polarization induced and detected by coherently precessing electron spins in fluorine-doped ZnSe
F. Heisterkamp, E. Kirstein, A. Greilich +5
We study the dynamics of optically-induced nuclear spin polarization in a fluorine-doped ZnSe epilayer via time-resolved Kerr rotation. The nuclear polarization in the vicinity of…
Inhomogeneous nuclear spin polarization induced by helicity-modulated optical excitation of fluorine-bound electron spins in ZnSe
F. Heisterkamp, A. Greilich, E. A. Zhukov +7
Optically-induced nuclear spin polarization in a fluorine-doped ZnSe epilayer is studied by time-resolved Kerr rotation using resonant excitation of donor-bound excitons. Excitatio…