Title :
Joule heat in point contacts
Author :
Rokni, Michal ; Levinson, Y.
Author_Institution :
Dept. of Condensed Matter Phys., Weizmann Inst. of Sci., Rehovot, Israel
Abstract :
We considered Joule heat in point contacts which are the elementary building blocks of ballistic devices with nonlocal transport based on two dimensional electron gas. We present a theory of a point contact up to second order in the applied voltage. Out of our calculation arises the main difference in Joule heat delivery between local and nonlocal transport. While for local transport the Joule heat is delivered in the same domains where the drop of potential happens, in the case of nonlocal transport these domains are well separated in space
Keywords :
high field effects; quantum interference devices; quantum point contacts; two-dimensional electron gas; Joule heat; ballistic devices; heat delivery; nonlocal transport; point contacts; submicron devices; two dimensional electron gas; Conductivity; Current density; Electron mobility; Phonons; Physics; Quantization; Reservoirs; Resistance heating; Space heating; Voltage control;
Conference_Titel :
Physics and Computer Modeling of Devices Based on Low-Dimensional Structures, 1995. Proceedings., International Workshop on
Conference_Location :
Aizu-Wakamatsu
Print_ISBN :
0-8186-7321-4
DOI :
10.1109/PCMDLS.1995.494461
