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Frenkel-Kontorova Model of the Dimerized Overlayer System with Vacancies |
| XU Hai-Bo1,2;WANG Guang-Rui2;CHEN Shi-Gang2 |
| 1Graduate School, China Academy of Engineering Physics, P. O. Box 2101, Beijing 100088
2Center for Nonlinear Studies, Institute of Applied Physics and Computational mathematics, Beijing 100088
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| Cite this article: |
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XU Hai-Bo, WANG Guang-Rui, CHEN Shi-Gang 2000 Chin. Phys. Lett. 17 689-690 |
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Abstract The reconstruction of the dimerized overlayer system with vacancies is studied via a diatomic chain Frenkel-Kontorova model. We present the details of the exactly solvable model and the analytical solution of the atomic displacements in the ground state. Our calculations explain the 2 x N reconstruction observed in Ge/Si(100) and Ga/Si(112).
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| Keywords:
68.55.-a
64.60.Fh
68.35.Md
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Published: 01 September 2000
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| PACS: |
68.55.-a
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(Thin film structure and morphology)
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64.60.fh
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(Studies of specific substances in the critical region)
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68.35.Md
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(Surface thermodynamics, surface energies)
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