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The Calculation Of The Surface Energy Of High-Index Surfaces Of Silicon At Zero Temperature

Author

Listed:
  • SANJUN WANG

    (Department of Physics, Henan Institute of Education, Zhengzhou 450014, China)

  • YOULIN SONG

    (Department of Physics, Henan Institute of Education, Zhengzhou 450014, China;
    School of Physics Science and Technology, Key Laboratory of Materials Physics Ministry of Education of China, Zhengzhou University, Zhengzhou 450052, China)

  • XIANLIN ZHAO

    (Department of Physics, Henan Institute of Education, Zhengzhou 450014, China)

  • XIANJUN WANG

    (Department of Physics, Henan Institute of Education, Zhengzhou 450014, China)

  • JINHAI LIU

    (Department of Physics, Henan Institute of Education, Zhengzhou 450014, China)

  • JINMING LI

    (Department of Physics, Henan Institute of Education, Zhengzhou 450014, China)

  • YU JIA

    (School of Physics Science and Technology, Key Laboratory of Materials Physics Ministry of Education of China, Zhengzhou University, Zhengzhou 450052, China)

Abstract

We used the molecular dynamics simulation based on the Stillinger–Weber (SW) interatomic potential to calculate the high-index surface energies of surfaces containing any of the stereographic surfaces of silicon at zero temperature. An empirical formula based on the structural unit model was generalized for high-index surfaces. Our simulated results show that the generalized formula can give a good estimation of the surface energy and structural feature of the high-index surfaces not only on the edge of stereographic but also within it. Our simulation and empirical formula results reveal that the closest surface has the lowest energy, so the closest (101) surface has the lowest surface energy and the (101), (111) and (001) surfaces are the extremum on the curve of surface energy versus orientation angle. Both the theoretical simulation results and the empirical formula calculation results are consistent with the available first-principles theoretical data.

Suggested Citation

  • Sanjun Wang & Youlin Song & Xianlin Zhao & Xianjun Wang & Jinhai Liu & Jinming Li & Yu Jia, 2006. "The Calculation Of The Surface Energy Of High-Index Surfaces Of Silicon At Zero Temperature," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 13(06), pages 841-846.
    • Handle: RePEc:wsi:srlxxx:v:13:y:2006:i:06:n:s0218625x0600892x
    DOI: 10.1142/S0218625X0600892X
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