ABSTRACT The dependence of the Hall coefficient on magnetic field (B < 1.5 T), measured at... more ABSTRACT The dependence of the Hall coefficient on magnetic field (B < 1.5 T), measured at 77 K, in short-period (D < 40 nm), strained PbTe superlattices is analysed and interpreted. It is concluded that the superlattice is of type II. In addition to the electrons in PbTe and holes in SnTe, a third kind of charge carriers, having a high mobility, appears to take part in the conduction process. The third carriers can be both electron and hole-like particles. Those carriers are connected with interface states which are expected to exist at the PbTe/SnTe interface. The carrier concentrations and mobilities in the bulk of the layers and at the interface are determined.[Russian Text Ignored].
Studies of the electrical properties of Si single crystals with delta(Sb) layers of various sheet... more Studies of the electrical properties of Si single crystals with delta(Sb) layers of various sheet densities ND, of Sb atoms (5×1012-3×1014 cm-2) have furnished detailed information about the low-temperature features of the electron transport in this system. The metal-type conductivity of delta layers at ND>=3×1013 cm-2 exhibits manifestations of the weak localization of electrons and electron-electron interaction in a two-dimensional
ABSTRACT The maximum entropy mobility spectrum analysis (ME-MSA) method has been developed on the... more ABSTRACT The maximum entropy mobility spectrum analysis (ME-MSA) method has been developed on the basis of a maximum entropy (ME) principle. It allows one to calculate a smooth electrical conductivity versus mobility plot ("mobility spectrum") from the classical magnetoconductivity tensor in semiconductor multilayer structures. The advantages of the ME-MSA as compared to the MSA are demonstrated using a synthetic data set.
ABSTRACT The dependence of the Hall coefficient on magnetic field (B < 1.5 T), measured at... more ABSTRACT The dependence of the Hall coefficient on magnetic field (B < 1.5 T), measured at 77 K, in short-period (D < 40 nm), strained PbTe superlattices is analysed and interpreted. It is concluded that the superlattice is of type II. In addition to the electrons in PbTe and holes in SnTe, a third kind of charge carriers, having a high mobility, appears to take part in the conduction process. The third carriers can be both electron and hole-like particles. Those carriers are connected with interface states which are expected to exist at the PbTe/SnTe interface. The carrier concentrations and mobilities in the bulk of the layers and at the interface are determined.[Russian Text Ignored].
Studies of the electrical properties of Si single crystals with delta(Sb) layers of various sheet... more Studies of the electrical properties of Si single crystals with delta(Sb) layers of various sheet densities ND, of Sb atoms (5×1012-3×1014 cm-2) have furnished detailed information about the low-temperature features of the electron transport in this system. The metal-type conductivity of delta layers at ND>=3×1013 cm-2 exhibits manifestations of the weak localization of electrons and electron-electron interaction in a two-dimensional
ABSTRACT The maximum entropy mobility spectrum analysis (ME-MSA) method has been developed on the... more ABSTRACT The maximum entropy mobility spectrum analysis (ME-MSA) method has been developed on the basis of a maximum entropy (ME) principle. It allows one to calculate a smooth electrical conductivity versus mobility plot ("mobility spectrum") from the classical magnetoconductivity tensor in semiconductor multilayer structures. The advantages of the ME-MSA as compared to the MSA are demonstrated using a synthetic data set.
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