Hot-phonon-assisted resonant tunneling in a quantum well
نویسندگان
چکیده
We theoretically investigate dc electron resonant tunneling through an impurity state in a quantum well assisted by hot acoustical phonons. Numerical results for the tunneling current, obtained by nonequilibrium Green functions, reflect the hot-phonon-induced change in the spectrum and population of the impurity state. The induced change of the I-V characteristics has a typical two-peak form, which for larger populations of the level becomes distorted by increased intralevel phonon emissions. A qualitative agreement with experiments is obtained. @S0163-1829~98!04224-6#
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تاریخ انتشار 1998