Reconstruction and electronic properties of interface between carbon nanotubes and ferromagnetic co electrodes
The reconstruction and electronic structures of the interfaces between single wall carbon nanotubes and ferromagnetic Co electrodes were studied in the framework of density functional theory. The obtained results revealed that there is a strong interaction between carbon nanotubes and Co elect...
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iium-298802014-07-17T04:29:11Z http://irep.iium.edu.my/29880/ Reconstruction and electronic properties of interface between carbon nanotubes and ferromagnetic co electrodes Cuong, Nguyen Tien Mohamed, Mohd Ambri Otsuka, Nobuo Chi, Dam Hieu TJ163.26 Energy conservation The reconstruction and electronic structures of the interfaces between single wall carbon nanotubes and ferromagnetic Co electrodes were studied in the framework of density functional theory. The obtained results revealed that there is a strong interaction between carbon nanotubes and Co electrodes. At the interface region, Top layers of Co surface have been significantly reconstructed. The nature of chemical bonds at the Co-C interface is covalent bonding. The increase of the electron density occurs mainly at the interface where a substantial concentration of electron accumulates in Co-C bonds. A small amount of charge transfer from Co electrode to carbon nanotube junction was found. In addition, the spin polarization of Co atoms at the interface region has been suppressed due to the interaction with a carbon nanotube. It implies that the spin transport through this layer is low, which results in the small hysteretic magneto-resistance of carbon nanotube devices. Trans Tech Publications Ltd., Switzerland 2012-09-20 Article PeerReviewed application/pdf en http://irep.iium.edu.my/29880/1/AMM.229-231.183.pdf Cuong, Nguyen Tien and Mohamed, Mohd Ambri and Otsuka, Nobuo and Chi, Dam Hieu (2012) Reconstruction and electronic properties of interface between carbon nanotubes and ferromagnetic co electrodes. Applied Mechanics and Materials, 229-31. pp. 183-187. ISSN 1660-9336 http://dx.doi.org/10.4028/www.scientific.net/AMM.229-231.183 10.4028/www.scientific.net/AMM.229-231.183 |
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TJ163.26 Energy conservation |
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TJ163.26 Energy conservation Cuong, Nguyen Tien Mohamed, Mohd Ambri Otsuka, Nobuo Chi, Dam Hieu Reconstruction and electronic properties of interface between carbon nanotubes and ferromagnetic co electrodes |
description |
The reconstruction and electronic structures of the interfaces between single wall carbon
nanotubes and ferromagnetic Co electrodes were studied in the framework of density functional
theory. The obtained results revealed that there is a strong interaction between carbon nanotubes and
Co electrodes. At the interface region, Top layers of Co surface have been significantly
reconstructed. The nature of chemical bonds at the Co-C interface is covalent bonding. The increase
of the electron density occurs mainly at the interface where a substantial concentration of electron
accumulates in Co-C bonds. A small amount of charge transfer from Co electrode to carbon
nanotube junction was found. In addition, the spin polarization of Co atoms at the interface region
has been suppressed due to the interaction with a carbon nanotube. It implies that the spin transport
through this layer is low, which results in the small hysteretic magneto-resistance of carbon
nanotube devices. |
format |
Article |
author |
Cuong, Nguyen Tien Mohamed, Mohd Ambri Otsuka, Nobuo Chi, Dam Hieu |
author_facet |
Cuong, Nguyen Tien Mohamed, Mohd Ambri Otsuka, Nobuo Chi, Dam Hieu |
author_sort |
Cuong, Nguyen Tien |
title |
Reconstruction and electronic properties of interface between carbon nanotubes and ferromagnetic co electrodes |
title_short |
Reconstruction and electronic properties of interface between carbon nanotubes and ferromagnetic co electrodes |
title_full |
Reconstruction and electronic properties of interface between carbon nanotubes and ferromagnetic co electrodes |
title_fullStr |
Reconstruction and electronic properties of interface between carbon nanotubes and ferromagnetic co electrodes |
title_full_unstemmed |
Reconstruction and electronic properties of interface between carbon nanotubes and ferromagnetic co electrodes |
title_sort |
reconstruction and electronic properties of interface between carbon nanotubes and ferromagnetic co electrodes |
publisher |
Trans Tech Publications Ltd., Switzerland |
publishDate |
2012 |
url |
http://irep.iium.edu.my/29880/ http://irep.iium.edu.my/29880/ http://irep.iium.edu.my/29880/ http://irep.iium.edu.my/29880/1/AMM.229-231.183.pdf |
first_indexed |
2023-09-18T20:43:52Z |
last_indexed |
2023-09-18T20:43:52Z |
_version_ |
1777409544825077760 |