Physics – Condensed Matter
Scientific paper
1996-06-27
Physics
Condensed Matter
16 pages, RevTeX, 7 figures. Also available at http://www-cmg.physics.umd.edu/~lzheng/
Scientific paper
10.1103/PhysRevB.54.13908
We calculate Coulomb scattering lifetimes of electrons in two-subband quantum wires and in double-layer quantum wells by obtaining the quasiparticle self-energy within the framework of the random-phase approximation for the dynamical dielectric function. We show that, in contrast to a single-subband quantum wire, the scattering rate in a two-subband quantum wire contains contributions from both particle-hole excitations and plasmon excitations. For double-layer quantum well structures, we examine individual contributions to the scattering rate from quasiparticle as well as acoustic and optical plasmon excitations at different electron densities and layer separations. We find that the acoustic plasmon contribution in the two-component electron system does not introduce any qualitatively new correction to the low energy inelastic lifetime, and, in particular, does not produce the linear energy dependence of carrier scattering rate as observed in the normal state of high-$T_c$ superconductors.
Sarma Sankar Das
Zheng Lian
No associations
LandOfFree
Inelastic lifetimes of confined two-component electron systems in semiconductor quantum wire and quantum well structures does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Inelastic lifetimes of confined two-component electron systems in semiconductor quantum wire and quantum well structures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inelastic lifetimes of confined two-component electron systems in semiconductor quantum wire and quantum well structures will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-266159