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  Graphene-Passivated Nickel as an Oxidation-Resistant Electrode for Spintronics

Dlubak, B., Martin, M.-B., Weatherup, R. S., Yang, H., Deranlot, C., Blume, R., et al. (2012). Graphene-Passivated Nickel as an Oxidation-Resistant Electrode for Spintronics. ACS Nano, 6(12), 10930-10934. doi:10.1021/nn304424x.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-706A-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-0FBE-6
Genre: Journal Article

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Passivated nickel v24b.pdf (Any fulltext), 536KB
 
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 Creators:
Dlubak, Bruno1, Author
Martin, Marie-Blandine2, Author
Weatherup, Robert S.1, Author
Yang, Heejun2, Author
Deranlot, Cyrile2, Author
Blume, Raoul3, Author
Schlögl, Robert4, Author              
Fert, Albert2, Author
Anane, Abdelmadjid2, Author
Hofmann, Stephan1, Author
Seneor, Pierre2, Author
Robertson, John1, Author
Affiliations:
1Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, United Kingdom, ou_persistent22              
2Unité Mixte de Physique CNRS/Thales, 91767 Palaiseau, France, and University of Paris-Sud, 91405 Orsay, France, ou_persistent22              
3Abt. Solarenergieforschung, Helmhotz-Zentrum Berlin, ou_persistent22              
4Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

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Free keywords: Graphene; chemical vapor deposition; passivation; spintronics; ferromagnet; magnetism
 Abstract: We report on graphene-passivated ferromagnetic electrodes (GPFE) for spin devices. GPFE are shown to act as spin-polarized oxidation-resistant electrodes. The direct coating of nickel with few layer graphene through a readily scalable chemical vapor deposition (CVD) process allows the preservation of an unoxidized nickel surface upon air exposure. Fabrication and measurement of complete reference tunneling spin valve structures demonstrate that the GPFE is maintained as a spin polarizer and also that the presence of the graphene coating leads to a specific sign reversal of the magneto-resistance. Hence, this work highlights a novel oxidation-resistant spin source which further unlocks low cost wet chemistry processes for spintronics devices.

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Language(s): eng - English
 Dates: 2012-11-152012-12-21
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/nn304424x
 Degree: -

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Title: ACS Nano
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 6 (12) Sequence Number: - Start / End Page: 10930 - 10934 Identifier: ISSN: 1936-0851
CoNE: https://pure.mpg.de/cone/journals/resource/1936-0851