Experimental researches of quantum transport properties of semiconductor two-dimensional electron systems in Si-MOSFETs and GaAs/AlGaAs heterostructures in high magnetic fields up to 27 T and at low temperatures down to 20 mK are performed. Analysis of the Hall conductivity of Si-MOSFETs based on a mobility edge model shows that the temperature dependence of the mobility edge can not be explained by existing theory of localization. The fractional quantum Hall effect is observed at the filling factor of 1/7 in heterostructures. Sample size dependence and magnetic field dependence of the breakdown of the integral quantum Hall effect in heterostructures reveal that the Hall current is carried not by the edge states but by the extended states i...
We report on theoretical and experimental investigations of the integer quantized Hall effect in nar...
Recent theoretical results on magnetotransport of electrons in a 2D system in the range of moderatel...
This thesis presents the results of experiments that have measured the magnetic moment of two-dimens...
Integer and fractional quantum Hall effects are interesting phenomena in two-dimensional electron sy...
Magnetotransport characteristics of dilute two-dimensional hole gases (2DHGs) in Si/SiGe heterostruc...
We have investigated the temperature dependence of the longitudinal conductivity σxx and Hall resist...
We have investigated the temperature dependence of the longitudinal conductivity σxx and Hall resist...
We have observed the quantum Hall effect in a high mobility two-dimensional electron gas to filling ...
This thesis describes two sets of experiments which explore transport in a two-dimensional elec-tron...
In recent years, semiconductor nanostructures have become the model systems of choice for investigat...
The nonlinear behavior of the Hall resistivity at low magnetic fields in single quantum well GaAs/ I...
In this work we have studied the properties of two-dimensional electron systems (2DES) in AlGaAs het...
This dissertation describes low-temperature electronic transport measurements on semiconductor struc...
We review recent heat capacity and magnetotransport experiments on GaAs/AlGaAs heterostructures cont...
We report on theoretical and experimental investigations of the integer quantized Hall effect in nar...
We report on theoretical and experimental investigations of the integer quantized Hall effect in nar...
Recent theoretical results on magnetotransport of electrons in a 2D system in the range of moderatel...
This thesis presents the results of experiments that have measured the magnetic moment of two-dimens...
Integer and fractional quantum Hall effects are interesting phenomena in two-dimensional electron sy...
Magnetotransport characteristics of dilute two-dimensional hole gases (2DHGs) in Si/SiGe heterostruc...
We have investigated the temperature dependence of the longitudinal conductivity σxx and Hall resist...
We have investigated the temperature dependence of the longitudinal conductivity σxx and Hall resist...
We have observed the quantum Hall effect in a high mobility two-dimensional electron gas to filling ...
This thesis describes two sets of experiments which explore transport in a two-dimensional elec-tron...
In recent years, semiconductor nanostructures have become the model systems of choice for investigat...
The nonlinear behavior of the Hall resistivity at low magnetic fields in single quantum well GaAs/ I...
In this work we have studied the properties of two-dimensional electron systems (2DES) in AlGaAs het...
This dissertation describes low-temperature electronic transport measurements on semiconductor struc...
We review recent heat capacity and magnetotransport experiments on GaAs/AlGaAs heterostructures cont...
We report on theoretical and experimental investigations of the integer quantized Hall effect in nar...
We report on theoretical and experimental investigations of the integer quantized Hall effect in nar...
Recent theoretical results on magnetotransport of electrons in a 2D system in the range of moderatel...
This thesis presents the results of experiments that have measured the magnetic moment of two-dimens...