43 citations · 282 across the 21 of their papers we have counts for
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Triple-top-gate technique for studying the strongly interacting 2D electron systems in heterostructures
M. Yu. Melnikov, A. A. Shashkin, S. -H. Huang +2
We have developed a technique that dramatically reduces the contact resistances and depletes a shunting channel between the contacts outside the Hall bar in ultra-high mobility SiG…
Spin independence of the strongly enhanced effective mass in ultra-clean SiGe/Si/SiGe two-dimensional electron system
M. Yu. Melnikov, A. A. Shakirov, A. A. Shashkin +3
The effective mass at the Fermi level is measured in the strongly interacting two-dimensional (2D) electron system in ultra-clean SiGe/Si/SiGe quantum wells in the low-temperature…
Valley effects on the fractions in an ultrahigh mobility SiGe/Si/SiGe two-dimensional electron system
V. T. Dolgopolov, M. Yu. Melnikov, A. A. Shashkin +3
We observe minima of the longitudinal resistance corresponding to the quantum Hall effect of composite fermions at quantum numbers , 2, 3, 4, and 6 in an ultraclean strongly i…
Classical effects in the weak-field magnetoresistance of InGaAs/InAlAs quantum wells
M. Yu. Melnikov, A. A. Shashkin, V. T. Dolgopolov +3
We observe an unusual behavior of the low-temperature magnetoresistance of the high-mobility two-dimensional electron gas in InGaAs/InAlAs quantum wells in weak perpendicular magne…
Unusual anisotropy of inplane field magnetoresistance in ultra-high mobility SiGe/Si/SiGe quantum wells
M. Yu. Melnikov, V. T. Dolgopolov, A. A. Shashkin +3
We find an unusual anisotropy of the inplane field magnetoresistance in ultra-high mobility SiGe/Si/SiGe quantum wells. The anisotropy depends on the orientation between the inplan…
Ultra-high mobility two-dimensional electron gas in a SiGe/Si/SiGe quantum well
M. Yu. Melnikov, A. A. Shashkin, V. T. Dolgopolov +3
We report the observation of an electron gas in a SiGe/Si/SiGe quantum well with maximum mobility up to 240 m^2/Vs, which is noticeably higher than previously reported results in s…