By Topic

An electromagnetic microscopic positioning device for the scanning tunneling microscope

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Corb, B.W. ; Institut für Physik der Universität Basel, Klingelbergstrasse 82, CH‐4056 Basel, Switzerland ; Ringger, M. ; Guntherodt, H.‐J.

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.335568 

We have developed a device that is capable of moving with steps as small as 70 Å in any direction over a flat surface. The device that we call the Maggot consists of two permanent magnets attached to the corners of a triangular plate that stands on a flat base with three fixed ball‐bearing feet. The Maggot is propelled across the base by the magnetic fields from two coils that are powered by computer‐controlled current pulses. Steering of the Maggot is made by vector addition of the pulses by the computer. A complete electromagnetic force theory is given in order to find the best magnet and solenoid geometries for maximum performance. The Maggot is UHV compatible, operates from 500 to 4.2 °K, and is most suitable for operation on a vibration‐isolated base. Movement data is measured with both optical and scanning tunneling microscopy.

Published in:

Journal of Applied Physics  (Volume:58 ,  Issue: 11 )