Half metallicity in a zigzag double-walled nanotube nanodot : an ab initio prediction Du, A J., Zhu, Z. H., Sun, C. H., Chen, Y., Lu, G. Q. and Smith, Sean C. 2009, Half metallicity in a zigzag double-walled nanotube nanodot : an ab initio prediction, Chemical physics letters, vol. 468, no. 4-6, pp. 257-259, doi: 10.1016/j.cplett.2008.12.043. Attached Files Name Description MIMEType Size Downloads Title Half metallicity in a zigzag double-walled nanotube nanodot : an ab initio prediction Author(s) Du, A J. Zhu, Z. H. Sun, C. H. Chen, Y. orcid.org/0000-0002-7322-2224 Lu, G. Q. Smith, Sean C. Journal name Chemical physics letters Volume number 468 Issue number 4-6 Start page 257 End page 259 Total pages 3 Publisher Elsevier B V Place of publication Amsterdam, The Netherlands Publication date 2009-01 ISSN 0009-2614 1873-4448 Summary Ab initio density functional calculations were performed to study finite-length zigzag (7, 0) @ (16, 0) double-walled carbon nanotubes (DWCNTs) with H-termination at the open ends. We find that such a DWCNT nanodot displays a very large magnetic moment at the zigzag edges and the ground state displays symmetric anti-ferromagnetic coupling. When an external electric field is applied along the direction of tube axis, a gap is opened for one spin channel, whereas another spin channel remains metallic, i.e. half metallicity occurs. Our results suggest an important new avenue for the development of CNT-based spintronic materials with enhanced properties. © 2008 Elsevier B.V. All rights reserved. Language eng DOI 10.1016/j.cplett.2008.12.043 Field of Research 100708 Nanomaterials Socio Economic Objective 970110 Expanding Knowledge in Technology HERDC Research category C1.1 Refereed article in a scholarly journal Copyright notice ©2008 Elsevier B.V. Persistent URL http://hdl.handle.net/10536/DRO/DU:30029173 Document type: Journal Article Collections: Institute for Technology Research and Innovation GTP Research Related Links Link Description Connect to published version (restricted) Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Tue, 08 Jun 2010, 16:27:55 EST Wed, 09 Jun 2010, 09:33:20 EST Thu, 10 Jun 2010, 15:48:12 EST Thu, 10 Jun 2010, 15:51:03 EST Fri, 11 Jun 2010, 09:51:38 EST Fri, 11 Jun 2010, 09:52:56 EST Fri, 11 Jun 2010, 09:53:54 EST Mon, 16 Jun 2014, 15:58:24 EST Thu, 11 Dec 2014, 16:39:11 EST Filtered Full Citation counts:   Cited 4 times in TR Web of Science Cited 4 times in Scopus Search Google Scholar Access Statistics: 850 Abstract Views, 3 File Downloads  -  Detailed Statistics Created: Tue, 08 Jun 2010, 16:27:54 EST