Experimental Tunneling Ratchets-Reference-Cited by-同舟云学术

Experimental Tunneling Ratchets

Published:1999-12-17 Issue:5448 Volume:286 Page:2314-2317
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Linke H.¹,Humphrey T. E.¹,Löfgren A.²,Sushkov A. O.¹,Newbury R.¹,Taylor R. P.¹,Omling P.²

Affiliation:

1. School of Physics, University of New South Wales, Sydney 2052, Australia.

2. Division of Solid State Physics, Lund University, Box 118, 221 00 Lund, Sweden.

Abstract

Adiabatically rocked electron ratchets, defined by quantum confinement in semiconductor heterostructures, were experimentally studied in a regime where tunneling contributed to the particle flow. The rocking-induced electron flow reverses direction as a function of temperature. This result confirms a recent prediction of fundamentally different behavior of classical versus quantum ratchets. A wave-mechanical model reproduced the temperature-induced current reversal and provides an intuitive explanation.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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