Je. Hasbun et Sl. Ban, OPTICAL-PHONON SCATTERING IN QUASI-2-DIMENSIONAL HETEROJUNCTION SYSTEMS, Physical review. B, Condensed matter, 58(4), 1998, pp. 2102-2106
The electronic scattering due to optical phonons in quasi-two-dimensio
nal (Q2D) systems is investigated as a function of temperature. The th
ree-dimensional (3D) Frohlich Hamiltonian (FH), a standard approximati
on to account for optical-phonon scattering in Q2D systems, is compare
d to two more realistic mechanisms that are available in the literatur
e. These two mechanisms are due to Q2D electrons interacting with the
interface as well as the half space bulk optical phonons. The results
reveal that these two mechanisms combined give rise to a mobility that
is slightly lower than that obtained with the 3D bulk FH. Additionall
y, a two-dimensional (2D) limit of the interface optical Hamiltonian g
ives rise to a much higher scattering than the pure 3D bulk via the FH
.