Theoretical determination of the necessary conditions for the formation of ZnO nanorings and nanohelices

Details Theoretical determination of the necessary conditions for the formation of ZnO nanorings and nanohelices Theoretical determination of the necessary conditions for the formation of ZnO nanorings and nanohelices

2005-07-14

arxiv.org/abs/cond-mat/0507321v2

Phys. Rev. B 73, 115402 (2006)

Physics

Condensed Matter

Materials Science

6 journal pages

Scientific paper

10.1103/PhysRevB.73.115402

The formation of ZnO nanorings and nanohelices with large polar surfaces observed in experiments [Nano Lett. 3, 1625 (2003); J. Am. Chem. Soc. 126, 6703 (2004)] is shown to be a result of the competition between elastic energy, spontaneous polarization-induced surface energy, volume energy, and defect-induced energy. It is found that nanorings and nanohelices observed in experiments are stable and energetically favorable structures.

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