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排序方式: 共有85条查询结果,搜索用时 265 毫秒
1.
V. T. Dolgopolov E. V. Deviatov A. A. Shashkin U. Wieser U. Kunze G. Abstreiter K. Brunner 《Superlattices and Microstructures》2003,33(5-6):271
The small, about 30% magnetoresistance at the onset of full spin polarization in the 2D electron system in a modulation-doped Si/SiGe quantum well gives evidence that it is the remote doping that determines the transport scattering time. Measurements of the mobility in this strongly-interacting electron system with remote-doping scattering allow us to arrive at a conclusion that the Hubbard form underestimates the local field corrections by about a factor of 2. 相似文献
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The magnetic field of complete spin polarization is calculated in a disorderless single-valley strongly-interacting 2D electron system. In the metallic region above the Wigner-Mott transition, nonequilibrium spin states are predicted, which should give rise to hysteresis in the magnetization. 相似文献
4.
V. T. Dolgopolov A. A. Shashkin G. V. Kravchenko I. M. Mukhametzhanov M. Wendel J. P. Kotthaus L. W. Molenkamp C. T. Foxon 《JETP Letters》1996,63(1):63-69
It is detected experimentally for the first time that the connection of 2D electron systems with different electrochemical
potentials results in long-range (τ 50 μm) electron density disturbances. When a gated region of a Corbino sample is strongly
depleted, the amplitude of the magnetoresistance oscillations caused by high density ungated regions is found to increase
in direct proportion to the sample resistance, which is dominated by low-density regions with small conductivity. Experiments
on samples with an artificial potential profile (antidots and etched rings) below the gate show that the observed effects
are not due to contact effects.
Pis’ma Zh. Eksp. Teor. Fiz. 63, No. 1, 55–60 (10 January 1996)
Published in English in the original Russian journal. Edited by Steve Torstveit. 相似文献
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The increase of the ratio of H0/Hc is experimentally foound to result in changing the configuration and motion of the normal and superconducting regions in the layer. 相似文献
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M. A. Dolgopolov L. A. Minin V. A. Rabotkin 《Bulletin of the Russian Academy of Sciences: Physics》2017,81(10):1225-1229
The phenomenological Paris potential of nucleon–nucleon interaction is analyzed in terms of the independence of the coefficients of various components. Analysis of the determinant of the Gram matrix reveals the extremely high dependences of the coefficients, demanding a revision of the system of basic functions. 相似文献
7.
D. Alde F. G. Binon M. Boutemeur C. Bricman A. V. Dolgopolov S. V. Donskov M. Gouanere S. Inaba A. V. Inyakin V. A. Kachanov G. V. Khaustov T. Kinashi E. A. Knapp M. Kobayashi A. A. Kondashov A. V. Kulik G. L. Landsberg A. A. Lednev V. A. Lishin T. Nakamura J. P. Peigneux S. A. Polovnikov V. A. Polyakov M. Poulet Yu. D. Prokoshkin S. A. Sadovsky V. D. Samoylenko P. M. Shagin A. V. Shtannikov A. V. Singovsky J. P. Stroot V. P. Sugonyaev K. Takamatsu T. Tsuru 《Zeitschrift fur Physik C Particles and Fields》1995,66(3):379-383
A partial-wave analysis of the ω ωπ0-system produced in the π- p→ωπ0 n reaction at 38 GeV/c beam momentum has been performed. A new 5?- meson state,ρ 5(22350), with a massM=2330±35 MeV and a width Γ=400±100 MeV, is observed. The analysis also confirms the 1?- ρ(2150) meson, a radial-orbital excitation of the ρ(770), observed earlier by the GAMS Collaboration. 相似文献
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It is shown, that “current” states observed previously in experiments with bismuth samples can be explained if the change of electron trajectories in the electromagnetic wave field is taken into account. 相似文献