Anomalous Hall Effect in n-Type InSb in Pulsed High Electric Fields

概要

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Experimental studies of the Hall effect in n-type InSb at 77°K have been made in weak transverse magnetic fields (H≲300 oersteds) for electric fields in the region of the onset of impact ionization. It is known that the Hall coefficient, R_H decreases sharply when electron-hole pairs are produced by impact ionization. The observed R_H, however, decreases before strong impact ionization sets in and exhibits a minimum. If the magnetic field is sufficiently weak (H≲100 oersteds), the sign of R_H changes from negative (normal for n-type InSb) to positive, with increasing electric field. The anomalous behavior of R_H disappears with increasing magnetic field. It is shown experimentally that the observed anomalous Hall effect is related to the transverse and longitudinal asymmetries of potential caused by hole-injection from the anode.
社団法人応用物理学会の論文
1964-10-15