Current-coltage characteristics of PbSnTe:In films in a magnetic field with electron injection from the contacts

Abstract

The current-voltage characteristics (CVC) of PbSnTe:In films with a tin content of x ≈ 0.29 at helium temperatures with unipolar injection from the contacts and limitation by the space charge in a magnetic field of up to 4 T have been studied. Analysis of the CVC has shown that increasing the magnetic field from 0 to 4 T leads to changes in the CVC pattern. A relationship between these changes and the presence of a multilevel system of traps located in the band-gap zone has been suggested..