Structural transformations of double-walled carbon nanotube bundle under hydrostatic pressure

Abstract

Three kinds of the response mechanisms to the external pressure have been found for double-walled carbon nanotube (DWNT) bundle, depending strongly on their average radius and symmetry. The small-diameter DWNT bundle undergoes a small discontinuous volume change, and then deform continuously. The intermediate-diameter DWNT bundle collapses completely after a structure phase transition (SPT). Significantly, two SPTs exist for the larger-diameter DWNT bundle if the outer tube has no $C_6$ or $C_3$ symmetry. It would be interesting to search for signatures of these different structural transformations by experimentally investigating mechanical, optical and thermal response functions of DWNT bundle.

9 pages, 2 figures

References in corpus (3)

• Hydrostatic Pressure Effects on the Structural and Electronic Properties of Carbon Nanotubes
• Pressure screening in the interior of primary shells in double-wall carbon nanotubes
• Collapse of Double-Walled Carbon Nanotube Bundles under Hydrostatic Pressure

Cited by in corpus (4)

• Buckling of Carbon Nanotubes: A State of the Art Review
• Pressure-induced structural transitions in multi-walled carbon nanotubes
• Stabilization of carbon nanotubes by filling with inner tubes: An optical spectroscopy study on double-walled carbon nanotubes under hydrostatic pressure
• The study of structure, electronic and optical properties of double-walled carbon nanotube bundle under hydrostatic pressure