𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Imaging the electron-phonon interaction in the 2D electron gas

✍ Scribed by A.J. Kent

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
693 KB
Volume
169
Category
Article
ISSN
0921-4526

No coin nor oath required. For personal study only.

✦ Synopsis

The invited talk was given by the author Ballistic phonon imaging techniques have been used to study the electron-phonon interaction in the 2D electron gas (2DEG).

Anisotropies in the phonon wavevector distribution arise out of the requirements for energy and momentum conservation when a phonon is emitted or absorbed and from the angular dependence of the electron-phonon coupling. Images of the phonon absorption by the 2DEG in Si MOSFET devices are presented and compared with theoretical (Monte-Carlo) simulations.

In the quantum Hall regime it is shown that phonons are not emitted or absorbed in the bulk of the 2DEG and that dissipation and phonon scattering processes are confined to two opposite corners of the device.

πŸ“œ SIMILAR VOLUMES

Strong electron-phonon coupling among th
Strong electron-phonon coupling among the electrons in 2D electron lattice
✍ W. Kinase; K. Takahashi; S. Kuwata πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 206 KB

The interactions among the electrons in the two-dimensional lattice are considered for the several modes of the electron vibration. The relationship between the hole conduction and the vibration of electron lattice is discussed by the local fields due to the polarization wave caused by these modes.