Octagonal Defects at Carbon Nanotube Junctions
We investigate knee-shaped junctions of semiconductor zigzag carbon nanotubes. Two dissimilar octagons appear at such junctions; one of them can reconstruct into a pair of pentagons. The junction with two octagons presents two degenerate localized states at Fermi energy (EF). The reconstructed junct...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/658292 |
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| _version_ | 1832549390911275008 |
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| author | W. Jaskólski M. Pelc Leonor Chico A. Ayuela |
| author_facet | W. Jaskólski M. Pelc Leonor Chico A. Ayuela |
| author_sort | W. Jaskólski |
| collection | DOAJ |
| description | We investigate knee-shaped junctions of semiconductor zigzag carbon nanotubes. Two dissimilar octagons appear at such junctions; one of them can reconstruct into a pair of pentagons. The junction with two octagons presents two degenerate localized states at Fermi energy (EF). The reconstructed junction has only one state near EF, indicating that these localized states are related to the octagonal defects. The inclusion of Coulomb interaction splits the localized states in the junction with two octagons, yielding an antiferromagnetic system. |
| format | Article |
| id | doaj-art-885fd1dc9714489192c1836b9c15dc1a |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-885fd1dc9714489192c1836b9c15dc1a2025-02-03T06:11:28ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/658292658292Octagonal Defects at Carbon Nanotube JunctionsW. Jaskólski0M. Pelc1Leonor Chico2A. Ayuela3Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziądzka 5, 87-100 Toruń, PolandInstitute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziądzka 5, 87-100 Toruń, PolandInstituto de Ciencia de Materiales de Madrid (ICMM), Consejo Superior de Investigaciones Científicas (CSIC), C/Sor Juana Inés de la Cruz 3, 28049 Madrid, SpainCentro de Física de Materiales CFM-MPC CSIC-UPV/EHU, Donostia International Physics Center (DIPC), Departamento de Física de Materiales, Facultad de Químicas, UPV-EHU, 20018 San Sebastián, SpainWe investigate knee-shaped junctions of semiconductor zigzag carbon nanotubes. Two dissimilar octagons appear at such junctions; one of them can reconstruct into a pair of pentagons. The junction with two octagons presents two degenerate localized states at Fermi energy (EF). The reconstructed junction has only one state near EF, indicating that these localized states are related to the octagonal defects. The inclusion of Coulomb interaction splits the localized states in the junction with two octagons, yielding an antiferromagnetic system.http://dx.doi.org/10.1155/2013/658292 |
| spellingShingle | W. Jaskólski M. Pelc Leonor Chico A. Ayuela Octagonal Defects at Carbon Nanotube Junctions The Scientific World Journal |
| title | Octagonal Defects at Carbon Nanotube Junctions |
| title_full | Octagonal Defects at Carbon Nanotube Junctions |
| title_fullStr | Octagonal Defects at Carbon Nanotube Junctions |
| title_full_unstemmed | Octagonal Defects at Carbon Nanotube Junctions |
| title_short | Octagonal Defects at Carbon Nanotube Junctions |
| title_sort | octagonal defects at carbon nanotube junctions |
| url | http://dx.doi.org/10.1155/2013/658292 |
| work_keys_str_mv | AT wjaskolski octagonaldefectsatcarbonnanotubejunctions AT mpelc octagonaldefectsatcarbonnanotubejunctions AT leonorchico octagonaldefectsatcarbonnanotubejunctions AT aayuela octagonaldefectsatcarbonnanotubejunctions |