Negative photoconductivity of 2D electrons in semiconductor metal transition
Grodnenskii I. M., Starostin K. V., Galchenkov D. V.
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.