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Publikováno v:
In Physica E: Low-dimensional Systems and Nanostructures February 2022 136
A fine structure of phonon replicas in the current-voltage characteristic of a resonant-tunneling diode has been investigated experimentally. A detailed study of the diode I-V curves in magnetic fields of different orientations has allowed to determi
Externí odkaz:
http://arxiv.org/abs/1402.0217
Autor:
Gusev, G. M., Kvon, Z. D., Olshanetsky, E. B, Levin, A. D., Krupko, Y., Portal, J. C., Mikhailov, N. N., Dvoretsky, S. A.
We report unconventional transport properties of HgTe wells with inverted band structure: the resistance does not show insulating behavior even when it is of the order of $10^2\times h/2e^{2}$. The system is expected to be a two-dimensional topologic
Externí odkaz:
http://arxiv.org/abs/1308.4356
Autor:
Raichev, O. E., Gusev, G. M., Olshanetsky, E. B., Kvon, Z. D., Mikhailov, N. N., Dvoretsky, S. A., Portal, J. C.
Publikováno v:
Physical Review B 86, 155320 (2012)
The transport properties of the two-dimensional system in HgTe-based quantum wells containing simultaneously electrons and holes of low densities are examined. The Hall resistance, as a function of perpendicular magnetic field, reveals an unconventio
Externí odkaz:
http://arxiv.org/abs/1210.7219
Publikováno v:
Phys. Rev. B 84, 165303 (2011)
We study non-linear transport phenomena in a high-mobility bilayer system with two closely spaced populated electronic subbands in a perpendicular magnetic field. For a moderate direct current excitation, we observe zero-differential-resistance state
Externí odkaz:
http://arxiv.org/abs/1110.1953
We study experimentally the transport properties of "inverted" semiconductor HgTe-based quantum well, which is related to the two-dimensional topological insulator, in diffusive transport regime. We perform nonlocal electrical measurements in the abs
Externí odkaz:
http://arxiv.org/abs/1106.1824
Publikováno v:
Physical Review B 83, 195317 (2011)
The influence of microwave irradiation on dissipative and Hall resistance in high-quality bilayer electron systems is investigated experimentally. We observe a deviation from odd symmetry under magnetic field reversal in the microwave-induced Hall re
Externí odkaz:
http://arxiv.org/abs/1105.3362
Publikováno v:
Phys. Rev. B, 2011, v.83, 041306(R)
We observe zero-differential resistance states at low temperatures and moderate direct currents in a bilayer electron system formed by a wide quantum well. Several regions of vanishing resistance evolve from the inverted peaks of magneto-intersubband
Externí odkaz:
http://arxiv.org/abs/1101.5104
Publikováno v:
Physical Review B 82, 165333 (2010)
Experimental studies of magnetoresistance in high-mobility wide quantum wells reveal oscillations which appear with an increase in temperature to 10 K and whose period is close to that of Shubnikov-de Haas oscillations. The observed phenomenon is ide
Externí odkaz:
http://arxiv.org/abs/1010.6080