Half metallicity in a zigzag double-walled nanotube nanodot: An ab initio prediction
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Du, Ai Jun; Zhu, Zhong Hua; Sun, C H; Chen, Ying; Lu, Gaoqing Max; Smith, Sean C
Description
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...[Show more]
Collections | ANU Research Publications |
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Date published: | 2009 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/56077 |
Source: | Chemical Physics Letters |
DOI: | 10.1016/j.cplett.2008.12.043 |
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01_Du_Half_metallicity_in_a_zigzag_2009.pdf | 785.72 kB | Adobe PDF | Request a copy |
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