Experimental Observation of Current Reversal in a Rocking Brownian Motor

Physical Review Letters
Christian SchwemmerArmin W Knoll

Abstract

A reversal of the particle current in overdamped rocking Brownian motors was predicted more than 20 years ago; however, an experimental verification and a deeper insight into this noise-driven mechanism remained elusive. Here, we investigate the high-frequency behavior of a rocking Brownian motor for 60 nm gold spheres based on electrostatic interaction in a 3D-shaped nanofluidic slit and electro-osmotic forcing of the particles. We measure the particle probability density in situ with 10 nm spatial and 250  μs temporal resolution and compare it with theory. At a driving frequency of 250 Hz, we observe a current reversal that can be traced to the asymmetric and increasingly static probability density at high frequencies.

References

May 9, 1997·Science·R D Astumian
Jul 15, 1992·Physical Review. a·R FerrandoG E Tommei
Sep 6, 1993·Physical Review Letters·M O Magnasco
Feb 27, 1995·Physical Review Letters·L P FaucheuxA J Libchaber
Dec 22, 1999·Science·H LinkeP Omling
Apr 17, 2002·Physical Review Letters·C MarquetP Silberzan
Aug 25, 2004·Physical Review Letters·P H JonesF Renzoni
May 21, 2005·Physical Review Letters·Sang-Hyuk LeeDavid G Grier
May 21, 2005·Physical Review Letters·D E Shalóm, H Pastoriza
Oct 4, 2005·Physical Review Letters·M BeckD Koelle
Mar 31, 2006·Nature·Clécio C de Souza SilvaVictor V Moshchalkov
Oct 12, 2010·Nature·Madhavi KrishnanVahid Sandoghdar
May 24, 2011·Physical Review Letters·Alejandro V ArzolaJosé L Mateos
Mar 13, 2014·Nature Communications·Ji Tae KimVahid Sandoghdar
Aug 6, 2014·Nature Nanotechnology·Ricardo GarciaElisa Riedo
Aug 24, 2017·Proceedings of the National Academy of Sciences of the United States of America·Xiang YangH P Zhang
Feb 15, 2018·Beilstein Journal of Nanotechnology·Stefan FringesArmin W Knoll
Mar 31, 2018·Science·Michael J SkaugArmin W Knoll

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Citations

Dec 25, 2019·Nanoscale·Jiantao LengTienchong Chang
Apr 3, 2019·Physical Review. E·Palak Dugar, Chih-Chun Chien
Mar 9, 2019·Physical Review Letters·A SłapikJ Spiechowicz
Nov 6, 2018·Physical Review Letters·Dominik LipsPhilipp Maass
Apr 16, 2020·Physical Review. E·Yosyp A HumenyukFrantišek Slanina
Aug 12, 2021·Scientific Reports·Cesar MancheinMarcus W Beims
May 12, 2020·The Journal of Physical Chemistry Letters·Jige Chen
Nov 7, 2019·Nano Letters·Stefan FringesArmin W Knoll

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