Year: 1996
Type: article
Abstract: The dependence of the localization length on the number of occupied subbands N in low-dimensional semiconductors is investigated. The localization length is shown to be proportional to the number of occupied subbands in quasi-one-dimensional quantum wires, while it grows exponentially with N in quasi-two-dimensional systems. Also, a weak localization theory is developed for large N with a well-defined small expansion parameter 1/N. The temperature dependence of the conductivity deduced using this perturbation theory agrees with the experimentally observed dependence. \textcopyright{} 1996 The American Physical Society.
Authors: S.-R. Eric Yang, J. Rammer
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2063224451
