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- Russian Academy of SciencesRU76 papers
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11 papers · 2 filters
Magnetoelastic and thermal effects in the BiMn2O5 lattice: a high-resolution x-ray diffraction study
E. Granado, M. S. Eleoterio, A. F. Garcia-Flores +3
High-resolution synchrotron x-ray diffraction measurements were performed on single crystalline and powder samples of BiMn2O5. A linear temperature dependence of the unit cell volu…
Resonant light delay in GaN with ballistic and diffusive propagation
T. V. Shubina, M. M. Glazov, A. A. Toropov +8
We report on a strong delay in light propagation through bulk GaN, detected by time-of-flight spectroscopy. The delay increases resonantly as the photon energy approaches the energ…
Suppression of electron spin relaxation in Mn-doped GaAs
G. V. Astakhov, R. I. Dzhioev, K. V. Kavokin +7
We report a surprisingly long spin relaxation time of electrons in Mn-doped p-GaAs. The spin relaxation time scales with the optical pumping and increases from 12 ns in the dark to…
Bound magnetic polarons in the very dilute regime
Yu. G. Kusrayev, K. V. Kavokin, G. V. Astakhov +2
We study bound magnetic polarons (BMP) in a very diluted magnetic semiconductor CdMnTe by means of site selective spectroscopy. In zero magnetic field we detect a broad and asymmet…
Ultraviolet light emission from Si in a scanning tunneling microscope
Patrick Schmidt, Richard Berndt, Mikhail I. Vexler
Ultraviolet and visible radiation is observed from the contacts of a scanning tunneling microscope with Si(100) and (111) wafers. This luminescence relies on the presence of hot el…
Magneto-gyrotropic photogalvanic effects due to inter-subband absorption in quantum wells
H. Diehl, V. A. Shalygin, S. N. Danilov +6
We report on the observation of the magneto-photogalvanic effect (MPGE) due to inter-subband transitions in (001)-oriented GaAs quantum wells. This effect is related to the gyrotro…