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Surface-stress-induced phase transformation in metal nanowires.

Publication ,  Journal Article
Diao, J; Gall, K; Dunn, ML
Published in: Nature materials
October 2003

Several researchers have demonstrated, through experiments and analysis, that the structure and properties of nanometre-scale materials can be quite different to those of bulk materials due to the effect of surfaces. Here we use atomistic simulations to study a surface-stress-induced phase transformation in gold nanowires. The emergence of the transformation is controlled by wire size, initial orientation, boundary conditions, temperature and initial cross-sectional shape. For a <100> initial crystal orientation and wire cross-sectional area below 4 nm(2), surface stresses alone cause gold nanowires to transform from a face-centred-cubic structure to a body-centred-tetragonal structure. The transformation occurs roughly when the compressive stress caused by tensile surface-stress components in the length direction exceeds the compressive stress required to transform bulk gold to its higher energy metastable crystal structure.

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Published In

Nature materials

DOI

EISSN

1476-4660

ISSN

1476-1122

Publication Date

October 2003

Volume

2

Issue

10

Start / End Page

656 / 660

Related Subject Headings

  • Surface Properties
  • Stress, Mechanical
  • Nanotechnology
  • Nanoscience & Nanotechnology
  • Motion
  • Molecular Conformation
  • Models, Molecular
  • Models, Chemical
  • Materials Testing
  • Macromolecular Substances
 

Citation

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Diao, J., Gall, K., & Dunn, M. L. (2003). Surface-stress-induced phase transformation in metal nanowires. Nature Materials, 2(10), 656–660. https://doi.org/10.1038/nmat977
Diao, Jiankuai, Ken Gall, and Martin L. Dunn. “Surface-stress-induced phase transformation in metal nanowires.Nature Materials 2, no. 10 (October 2003): 656–60. https://doi.org/10.1038/nmat977.
Diao J, Gall K, Dunn ML. Surface-stress-induced phase transformation in metal nanowires. Nature materials. 2003 Oct;2(10):656–60.
Diao, Jiankuai, et al. “Surface-stress-induced phase transformation in metal nanowires.Nature Materials, vol. 2, no. 10, Oct. 2003, pp. 656–60. Epmc, doi:10.1038/nmat977.
Diao J, Gall K, Dunn ML. Surface-stress-induced phase transformation in metal nanowires. Nature materials. 2003 Oct;2(10):656–660.

Published In

Nature materials

DOI

EISSN

1476-4660

ISSN

1476-1122

Publication Date

October 2003

Volume

2

Issue

10

Start / End Page

656 / 660

Related Subject Headings

  • Surface Properties
  • Stress, Mechanical
  • Nanotechnology
  • Nanoscience & Nanotechnology
  • Motion
  • Molecular Conformation
  • Models, Molecular
  • Models, Chemical
  • Materials Testing
  • Macromolecular Substances