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  Bistability in Atomic-Scale Antiferromagnets

Loth, S., Baumann, S., Lutz, C. P., Eigler, D. M., & Heinrich, A. J. (2012). Bistability in Atomic-Scale Antiferromagnets. Science, 335(6065), 196-199. doi:10.1126/science.1214131.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-1831-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-1832-E
Genre: Journal Article

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http://dx.doi.org/10.1126/science.1214131 (Publisher version)
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 Creators:
Loth, Sebastian1, 2, 3, Author              
Baumann, Susanne3, 4, Author
Lutz, Christopher P.3, Author
Eigler, D. M.3, Author
Heinrich, Andreas J.3, Author
Affiliations:
1Dynamics of Nanoelectronic Systems, Research Groups, Max Planck Research Department for Structural Dynamics, Department of Physics, University of Hamburg, External Organizations, ou_2173642              
2Max Planck Institute for Solid State Research, ou_persistent22              
3IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose, CA 95120, USA, ou_persistent22              
4Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland, ou_persistent22              

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 Abstract: Control of magnetism on the atomic scale is becoming essential as data storage devices are miniaturized. We show that antiferromagnetic nanostructures, composed of just a few Fe atoms on a surface, exhibit two magnetic states, the Néel states, that are stable for hours at low temperature. For the smallest structures, we observed transitions between Néel states due to quantum tunneling of magnetization. We sensed the magnetic states of the designed structures using spin-polarized tunneling and switched between them electrically with nanosecond speed. Tailoring the properties of neighboring antiferromagnetic nanostructures enables a low-temperature demonstration of dense nonvolatile storage of information.

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Language(s): eng - English
 Dates: 2011-09-192011-11-282012-01-13
 Publication Status: Published in print
 Pages: 4
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1126/science.1214131
 Degree: -

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Title: Science
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Association for the Advancement of Science
Pages: - Volume / Issue: 335 (6065) Sequence Number: - Start / End Page: 196 - 199 Identifier: ISSN: 0036-8075
CoNE: /journals/resource/991042748276600_1