ELECTRON ELECTRON-SCATTERING PROBED BY A COLLIMATED ELECTRON-BEAM

Authors
MOLENKAMP LW BRUGMANS MJP VANHOUTEN H FOXON CT
Citation
Lw. Molenkamp et al., ELECTRON ELECTRON-SCATTERING PROBED BY A COLLIMATED ELECTRON-BEAM, Semiconductor science and technology, 7(3B), 1992, pp. 228-230
Citations number
13
Journal title
Semiconductor science and technology → ACNP
ISSN journal
02681242
Volume
7
Issue
3B
Year of publication
1992
Pages
228 - 230
Database
ISI
SICI code
0268-1242(1992)7:3B<228:EEPBAC>2.0.ZU;2-7
Abstract
We compare the effects of current heating, hot-electron injection and lattice temperature on the attenuation of a collimated ballistic elect ron beam in a two-dimensional electron gas. In the electron gas heatin g and injection experiments, we use a quantum point contact as a local thermometer. We find that electron-electron scattering is the dominan t factor determining the temperature dependence of the collimation sig nal.