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VOLUME 43 (1986) | ISSUE 1 | PAGE 54
Negative photoconductivity of 2D electrons in semiconductor metal transition
A method for arranging a negative photoconductivity in a heterostructure with a two-dimensional (2D) electron gas is proposed. The method involves an optical ejection of carriers from a 2D channel. The method has been demonstrated experimentally. The effect may prove useful for studying the properties of 2D systems in such structures.