Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Belykh, V. V."'
Autor:
Kirstein, E., Kopteva, N. E., Yakovlev, D. R., Zhukov, E. A., Kolobkova, E. V., Kuznetsova, M. S., Belykh, V. V., Yugova, I. A., Glazov, M. M., Bayer, M., Greilich, A.
The spin physics of perovskite nanocrystals with confined electrons or holes is attracting increasing attention, both for fundamental studies and spintronic applications. Here, stable CsPb(Cl$_{0.5}$Br$_{0.5}$)$_3$ lead halide perovskite nanocrystals
Externí odkaz:
http://arxiv.org/abs/2206.13323
Autor:
Belykh, V. V., Melyakov, S. R.
Publikováno v:
Phys. Rev. B 105, 205129 (2022)
Electron spin oriented along an external magnetic field is subject to longitudinal spin relaxation with characteristic time $T_1$. The corresponding decay is nonoscillating, so one cannot readily ascribe $T_1$ to a certain $g$ factor. This becomes a
Externí odkaz:
http://arxiv.org/abs/2202.07223
Autor:
Akmaev, M. A., Glazov, M. M., Kochiev, M. V., Vinokurov, P. V., Smagulova, S. A., Belykh, V. V.
Publikováno v:
Appl. Phys. Lett. 119, 113102 (2021)
We study photoluminescence (PL) spectra and exciton dynamics of MoS$_2$ monolayer (ML) grown by the chemical vapor deposition technique. In addition to the usual direct A-exciton line we observe a low-energy line of bound excitons dominating the PL s
Externí odkaz:
http://arxiv.org/abs/2108.10230
Publikováno v:
Phys. Rev. Lett. 127, 157401 (2021)
The inhomogeneity of an electron spin ensemble as well as fluctuating environment acting upon individual spins drastically shorten the spin coherence time $T_2$ and hinder coherent spin manipulation. We show that this problem can be solved by the sim
Externí odkaz:
http://arxiv.org/abs/2105.13674
Autor:
Akmaev, M. A., Kochiev, M. V., Duleba, A. I., Pugachev, M. V., Kuntsevich, A. Yu., Belykh, V. V.
Publikováno v:
Jetp Lett. 112, 607 (2020)
The spectral and spatiotemporal dynamics of photoluminescence in monolayers of transition metal dichalcogenide WSe$_2$ obtained by mechanical exfoliation on a Si/SiO$_2$ substrate is studied over a wide range of temperatures and excitation powers. It
Externí odkaz:
http://arxiv.org/abs/2012.13181
Publikováno v:
Phys. Rev. B 102, 075201 (2020)
Periodic excitation of electron spin polarization by consecutive laser pulses in phase with Larmor spin precession about a magnetic field results in resonant spin amplification (RSA). We observe a drastic modification of RSA in $n$-doped bulk GaAs un
Externí odkaz:
http://arxiv.org/abs/2008.01626
Publikováno v:
Phys. Rev. B 101, 235307 (2020)
We study the spin dynamics in a high-mobility two-dimensional electron gas confined in a GaAs/AlGaAs quantum well. An unusual magnetic field dependence of the spin relaxation is found: as the magnetic field becomes stronger, the spin relaxation time
Externí odkaz:
http://arxiv.org/abs/2006.04110
Publikováno v:
Sci. Rep. 10, 13155 (2020)
We develop a simple method for measuring the electron spin relaxation times $T_1$, $T_2$ and $T_2^*$ in semiconductors and demonstrate its exemplary application to $n$-type GaAs. Using an abrupt variation of the magnetic field acting on electron spin
Externí odkaz:
http://arxiv.org/abs/2004.09408
Publikováno v:
Phys. Rev. B 99, 161205(R) (2019)
We suggest a new pump-probe method for studying semiconductor spin dynamics based on pumping of carrier spins by a pulse of oscillating radiofrequency (rf) magnetic field and probing by measuring the Faraday rotation of a short laser pulse. We demons
Externí odkaz:
http://arxiv.org/abs/1904.05398
Publikováno v:
Physical Review B 99, 035310 (2019)
We investigate the statistics of microcavity polariton Bose-Einstein condensation by measuring photoluminescence dynamics from a GaAs microcavity excited by single laser excitation pulses. We directly observe fluctuations (jitter) of the polariton co
Externí odkaz:
http://arxiv.org/abs/1901.09633