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...

Full description

Bibliographic Details
Main Authors: Cuong, Nguyen Tien, Mohamed, Mohd Ambri, Otsuka, Nobuo, Chi, Dam Hieu
Format: Article
Language:English
Published: Trans Tech Publications Ltd., Switzerland 2012
Subjects:
Online Access: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
id iium-29880
recordtype eprints
spelling 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
repository_type Digital Repository
institution_category Local University
institution International Islamic University Malaysia
building IIUM Repository
collection Online Access
language English
topic TJ163.26 Energy conservation
spellingShingle 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