Динамика поверхностной проводимости в пленках PbSnTe : In с составом вблизи инверсии зон

А.Э. Климов,А.Н. Акимов, И.О. Ахундов, В.А. Голяшов,Д.В. Горшков, Д.В. Ищенко, Г.Ю. Сидоров,С.П. Супрун, А.С. Тарасов, В.С. Эпов,О.Е. Терещенко

Физика и техника полупроводников（2019）

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摘要

AbstractThe features of transient processes under the field effect in PbSnTe:In films with a variation in the current up to a factor of 10^5 are studied at helium temperatures. These features qualitatively correspond to a model, in which a high concentration of traps with different parameters is present on the PbSnTe:In surface. The role of the surface is confirmed by a strong variation in the experimental characteristic after the chemical removal of native oxides from the PbSnTe:In surface and its passivation by an Al_2O_3 layer.

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