Mechanical properties of Ge/Si core-shell nanowires under a uniaxial tension


The mechanical properties of Si/Ge core-shell nanowires under a unixial tension are studied using molecular-dynamics simulation. The effects of anisotropy and the fraction of the core atoms on the Young’s moduli of the core-shell nanowires are examined. The values of their Young’s moduli deviate from those calculated using Vegard’s law. Single atom chains are formed at the final stages of elongation of the nanowires.

This is a preview of subscription content, access via your institution.


  1. 1.

    M. S. Gudiksen, L. J. Lauhon, J. Wang, D. C. Smith, and C. M. Lieber, nature 415, 617 (2002).

    CAS  Article  Google Scholar 

  2. 2.

    L. J. Lauhon, M. S. Gudiksen, D. Wang, and C. M. Lieber, nature 420, 57 (2002).

    CAS  Article  Google Scholar 

  3. 3.

    J. Xiang, W. Lu, Y. Hu, Y. Wu, H. Yan, and C. M. Lieber, nature 441, 489 (2006).

    CAS  Article  Google Scholar 

  4. 4.

    R. T. Senger, S. Tongay, E. Durgun, and S. Ciraci, Phys. Rev. B 72, 075419 (2005).

    Article  Google Scholar 

  5. 5.

    T. Akiyama, K. Nakamura, and T. Ito, Phys. Rev. B 73, 235308 (2006).

    Article  Google Scholar 

  6. 6.

    T. Akiyama, K. Nakamura, and T. Ito, Phys. Rev. B 74, 033307 (2006).

    Article  Google Scholar 

  7. 7.

    T. Vo, A. J. Williamson, and G. Galli, Phys. Rev. B, 74, 045116 (2006).

    Article  Google Scholar 

  8. 8.

    J. Li and A. J. Freeman, Phys. Rev. B 74, 075333 (2006).

    Article  Google Scholar 

  9. 9.

    I. Ponomareva, M. Menon, E. Richter, and A. N. Andriotis, Phys. Rev. B 74, 125311 (2006).

    Article  Google Scholar 

  10. 10.

    R. N. Musin and X.-Q. Wang, Phys. Rev. B 74, 165308 (2006).

    Article  Google Scholar 

  11. 11.

    S. Raychaudhuri and E. T. Yu, J. Appl. Phys. 99, 114308 (2006).

    Article  Google Scholar 

  12. 12.

    S. Raychaudhuri and E. T. Yu, J. Vac. Sci. Technol. B 24, 2053 (2006).

    CAS  Article  Google Scholar 

  13. 13.

    F. Glas, Phys. Rev. B 74, 121302 (2006).

    Article  Google Scholar 

  14. 14.

    K. Shintani, S. Kameoka, S. Sato, and Y. Kometani, in Assembly at the Nanoscale --Toward Functional Nanostructured Materials, edited by C. S. Ozkan, F. Rosei, G. P. Lopinski, Z. L. Wang (Mater. Res. Soc. Symp. Proc. 901E, Warrendale, PA, 2006), 0901-Ra22-19-Rb22-19.1.

  15. 15.

    M. Schultz and R. Blachnik, in LANDOLT-BÖRNSTEIN Numerical Data and Functional Relationships in Science and Technology, New Series, edited by O Madelung (Springer, New York, 1982), III, 17a, p. 372, p. 412.

    Google Scholar 

  16. 16.

    J. F. Justo, R. D. Menezes, and L. V. C. Assali, Phys. Rev. B 75, 045303 (2007).

    Article  Google Scholar 

Download references

Author information



Corresponding author

Correspondence to Y. Yano.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Yano, Y., Nakajima, T. & Shintani, K. Mechanical properties of Ge/Si core-shell nanowires under a uniaxial tension. MRS Online Proceedings Library 958, 1017 (2006).

Download citation