Résumé
Density functional theory (DFT) was used to reproduce the C and B nuclear magnetic resonance (NMR) chemical shifts of icosahedral B4 boron carbide to analyze its atomic structure. It was found that large number of defected icosahedra affected the conducting properties of B4C. The results showed that each of the six equatorial atoms were linked to an atom at the end of chain by covalent bond. The predicted C and B NMR shifts of boron carbide systems were of high accuracy.
| langue originale | Anglais |
|---|---|
| Numéro d'article | 085506 |
| Pages (de - à) | 855061-855064 |
| Nombre de pages | 4 |
| journal | Physical Review Letters |
| Volume | 87 |
| Numéro de publication | 8 |
| Les DOIs | |
| état | Publié - 20 août 2001 |
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