Phys. Rev. B 49, 5038–5041 (1994)Electron-electron-scattering-induced size effects in a two-dimensional wireReceived 7 October 1993; published in the issue dated 15 February 1994 The differential resistance of wires defined in the two-dimensional electron gas in an (Al,Ga)As heterostructure is observed to first increase and then decrease with increasing current. It is demonstrated that this behavior results from the interplay of an enhanced electron-electron-scattering rate (due to current heating of the electron gas), and the partly diffusive nature of boundary scattering in the wire. The data are identified as an experimental observation of the Knudsen maximum and the Poiseuille flow regime in electron transport, and confirm an analogy between electron and gas flow that has been anticipated since the 1950s. © 1994 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.49.5038
DOI:
10.1103/PhysRevB.49.5038
PACS:
73.50.Fq, 73.50.Lw, 73.61.Ey
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.