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Giant axial electrostrictive deformation in carbon nanotubes.

作者信息

Guo Wanlin, Guo Yufeng

机构信息

Institute of Nano Science, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.

出版信息

Phys Rev Lett. 2003 Sep 12;91(11):115501. doi: 10.1103/PhysRevLett.91.115501. Epub 2003 Sep 9.

DOI:10.1103/PhysRevLett.91.115501
PMID:14525435
Abstract

An exceptionally large axial electrostrictive deformation is demonstrated in single walled carbon nanotubes using Hartree-Fock and density functional quantum mechanics simulations. Armchair and zigzag open-ended tubes and capped tubes are studied and in all of them the external electric field induced axial strains can be greater than 10% for a field strength within 1 V/A. The corresponding volumetric and gravimetric work capacities are predicted to be three and six orders higher than those of the best known ferroelectric, electrostrictive, magnetostrictive materials and elastomers, respectively.

摘要

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