ELECTRON ELECTRON-SCATTERING PROBED BY A COLLIMATED ELECTRON-BEAM

被引:28
作者
MOLENKAMP, LW [1 ]
BRUGMANS, MJP [1 ]
VANHOUTEN, H [1 ]
FOXON, CT [1 ]
机构
[1] PHILIPS RES LABS, REDHILL RH1 5HA, SURREY, ENGLAND
关键词
D O I
10.1088/0268-1242/7/3B/054
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We compare the effects of current heating, hot-electron injection and lattice temperature on the attenuation of a collimated ballistic electron beam in a two-dimensional electron gas. In the electron gas heating and injection experiments, we use a quantum point contact as a local thermometer. We find that electron-electron scattering is the dominant factor determining the temperature dependence of the collimation signal.
引用
收藏
页码:B228 / B230
页数:3
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