Coupled electron-electron and electron-hole transport: Influence of dimensionality and statistics

✍ Scribed by Yu.M. Sirenko; P. Vasilopoulos

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 443 KB
• Volume: 12
• Category: Article
• ISSN: 0749-6036
• DOI: 10.1016/0749-6036(92)90291-c

✦ Synopsis

Momentum and energy transfer between a one-dimensional electron gas (1DEG) and i-dimensional electron (hole) gas (; = 1,2,3) separated by a distance L is considered. The transfer is due to the Coulomb interaction between the gases of the same or different statistics. The d.c. current is applied to one gas and induces current in the other. Momentum and energy relaxation frequencies vrsT are evaluated both analytically and numerically with the allowance for the dynamical screening. Due to conservation laws and the Pauli principle the only effective scattering processes for carriers of strongly degenerate 1D gas are that with small momentum change and backscattering (the latter are suppressed for large se aration L Due to these 8 2 peculiarities in degenerate case the the dependence of v,"t; and v; on the concentration of 1DEG has step-like shape for scattering with 2D gas or delta-like form for coupling between two ID gases.