Electromagnetic Properties of Inner Double Walled Carbon Nanotubes Investigated by Nuclear Magnetic Resonance
| Autor: | Gasan Selman Alabedi, Christophe Goze-Bac, Ihsan Al-Taie, Mohamed Bouhrara, Yung Sam Kim, Thomas Wågberg, Edy Abou-Hamad |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Nanoteknik
Materials science Article Subject Chemical shift Relaxation (NMR) Mechanical properties of carbon nanotubes Carbon nanotube law.invention Optical properties of carbon nanotubes Condensed Matter::Materials Science Nuclear magnetic resonance law Electromagnetic shielding lcsh:Technology (General) Nano Technology Diamagnetism lcsh:T1-995 General Materials Science Magnetic dipole–dipole interaction |
| Zdroj: | Journal of Nanomaterials, Vol 2013 (2013) |
| ISSN: | 1687-4110 |
| DOI: | 10.1155/2013/713475 |
| Popis: | The nuclear magnetic resonance (NMR) analytical technique was used to investigate the double walled carbon nanotubes (DWNTs) electromagnetic properties of inner walls. The local magnetic and electronic properties of inner nanotubes in DWNTs were analyzed using 25%13C enriched C60by which the effect of dipolar coupling could be minimized. The diamagnetic shielding was determined due to the ring currents on outer nanotubes in DWNTs. The NMR chemical shift anisotropy (CSA) spectra and spin-lattice relaxation studies reveal the metallic properties of the inner nanotubes with a signature of the spin-gap opening below 70 K. |
| Databáze: | OpenAIRE |
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