Characteristic features of the magnetoresistance of Pb1-xSnxTe(In) and Pb1-xMnxTe(In) alloys in ultrastrong magnetic fieldsстатья
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Аннотация:The magnetoresistance of n- and p-type alloys Pb1-xSnxTe(In) with different compositions and of Pb1-xMnxTe(In) alloys in pulsed magnetic fields up to 40 T has been investigated. Localization of nonequilibrium charge carriers in a magnetic field has been observed in n- and p-type Pb1-xSnxTe(In). The amplitudes of a large-scale potential well in Pb1-xSnxTe(In) are estimated. A model which relates the localization mechanism to the tunneling of charge carriers from the allowed band to a single-electron metastable impurity state is proposed. A localization effect has not been observed in Pb1-xMnxTe(In). (C) 1996 American Institute of Physics.