20 citations · 49 across the 4 of their papers we have counts for
4 papers
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…
Fractional Quantum Hall Effect in SiGe/Si/SiGe Quantum Wells in Weak Quantizing Magnetic Fields
V. T. Dolgopolov, M. Yu. Melnikov, A. A. Shashkin +3
We have experimentally studied the fractional quantum Hall effect (FQHE) in SiGe/Si/SiGe quantum wells in relatively weak magnetic fields, where the Coulomb interaction between ele…
Effective g factor of low-density two-dimensional holes in a Ge quantum well
T. M. Lu, C. T. Harris, S. -H. Huang +3
We report measurements of the effective factor of low-density two-dimensional holes in a Ge quantum well. Using the temperature dependence of the Shubnikov-de Haas oscillations…
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…