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Pressure-induced phase transformation and structural resilience of single-wall carbon nanotube bundles

Sharma, Surinder M and Karmakar, S and Sikka, SK and Teredesai, Pallavi V and Sood, AK and Govindaraj, A and Rao, CNR (2001) Pressure-induced phase transformation and structural resilience of single-wall carbon nanotube bundles. In: Physical Review B, 63 (20). 205417/1-5.

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Abstract

We report here an in situ x-ray diffraction investigation of the structural changes in carbon single-wall nanotube bundles under quasihydrostatic pressures up to 13 GPa. In contrast with a recent study [Phys. Rev. Lett. 85, 1887 (2000)] our results show that the triangular lattice of the carbon nanotube bundles continues to persist up to ~10 GPa. The lattice is seen to relax just before the phase transformation that is observed at ~10 GPa. Further, our results display the reversibility of the two-dimensional lattice symmetry even after compression up to 13 GPa well beyond the 5 GPa value observed recently. These experimental results explicitly validate the predicted remarkable mechanical resilience of the nanotubes.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to American Physical Society (APS).
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 18 Jan 2007
Last Modified: 19 Sep 2010 04:12
URI: http://eprints.iisc.ernet.in/id/eprint/422

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