40 citations · 91 across the 8 of their papers we have counts for
7 papers
AC Conductance in n-InSb Structures with Quantum Well. Acoustic Studies
I. L. Drichko, I. Yu. Smirnov, Yu. M. Galperin +1
We studied the ac conductance of an -InSb quantum well structure using acoustic methods in magnetic fields up to 18 T and at temperatures ranging from 20 to 500 mK. We attribute…
Nonlinear AC and DC Conductivities in a Two-Subband n-GaAs/AlAs Heterostructure
I. L. Drichko, I. Yu. Smirnov, A. K. Bakarov +3
The DC and AC conductivities of the n-GaAs/AlAs heterostructure with two filled size quantization levels are studied within a wide magnetic field range. The electron spectrum of su…
Composite fermions in a wide quantum well in the vicinity of the filling factor 1/2
I. L. Drichko, I. Yu. Smirnov, A. V. Suslov +5
Using acoustic method we study dependences of transverse AC conductance, , on magnetic field, temperature and the amplitude of AC electric field in a wide (75 nm) quantum wel…
Melting of Wigner crystal in high-mobility -GaAs/AlGaAs heterostructures at filling factors : Acoustic studies
I. L. Drichko, I. Yu. Smirnov, A. V. Suslov +3
Using acoustic methods the complex high-frequency conductance of high-mobility -GaAs/AlGaAs heterostructures was determined in magnetic fields 1218~T. Based on the observed f…
Crossover between localized states and pinned Wigner crystal in high-mobility n-GaAs/AlGaAs heterostructures near filling factor
I. L. Drichko, I. Yu. Smirnov, A. V. Suslov +3
We have measured magnetic field dependences of the attenuation and velocity of surface acoustic waves in a high-mobility -GaAs/AlGaAs structure with a wide quantum well. The res…
High-frequency hopping conductivity in the quantum Hall effect regime: Acoustical studies
I. L. Drichko, A. M. Diakonov, I. Yu. Smirnov +2
The high-frequency conductivity of Si delta-doped GaAs/AlGaAs heterostructures is studied in the integer quantum Hall effect (QHE) regime, using acoustic methods. Both the real and…
Flicker Noise Induced by Dynamic Impurities in a Quantum Point Contact
J. P. Hessling, Yu. Galperin
We calculate low-frequency noise (LFN) in a quantum point contact (QPC) which is electrostatically defined in a 2D electron gas of a GaAs-AlGaAs heterostructure. The conventional s…