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  Graphene Supported Graphone/Graphane Bilayer Nanostructure Material for Spintronics

Ray, S. C., Soin, N., Makgato, T., Chuang, C. H., Pong, W. F., Roy, S. S., et al. (2014). Graphene Supported Graphone/Graphane Bilayer Nanostructure Material for Spintronics. Scientific Reports, 4: 3862, pp. 1-7. doi:10.1038/srep03862.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0017-B3B2-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-C4ED-C
Genre: Journal Article

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 Creators:
Ray, Sekhar C.1, Author
Soin, Navneet1, Author
Makgato, Thuto1, Author
Chuang, C. H.1, Author
Pong, W. F.1, Author
Roy, Susanta S.1, Author
Ghosh, Sarit K.1, Author
Strydom, A. M.2, Author              
McLaughlin, J. A.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              

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 Abstract: We report an investigation into the magnetic and electronic properties of partially hydrogenated vertically aligned few layers graphene (FLG) synthesized by microwave plasma enhanced chemical vapor deposition. The FLG samples are hydrogenated at different substrate temperatures to alter the degree of hydrogenation and their depth profile. The unique morphology of the structure gives rise to a unique geometry in which graphane/graphone is supported by graphene layers in the bulk, which is very different from other widely studied structures such as one-dimensional nanoribbons. Synchrotron based x-ray absorption fine structure spectroscopy measurements have been used to investigate the electronic structure and the underlying hydrogenation mechanism responsible for the magnetic properties. While ferromagnetic interactions seem to be predominant, the presence of antiferromagnetic interaction was also observed. Free spins available via the conversion of sp(2) to sp(3) hybridized structures, and the possibility of unpaired electrons from defects induced upon hydrogenation are thought to be likely mechanisms for the observed ferromagnetic orders.

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Language(s): eng - English
 Dates: 2014-01-24
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000330138500002
DOI: 10.1038/srep03862
 Degree: -

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Title: Scientific Reports
  Abbreviation : Sci. Rep.
Source Genre: Journal
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Publ. Info: London, UK : Nature Publishing Group
Pages: - Volume / Issue: 4 Sequence Number: 3862 Start / End Page: 1 - 7 Identifier: Other: 2045-2322
CoNE: /journals/resource/2045-2322