| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Strain-Driven Formation of Nanostripes on In/Si(113) Surface |
XU Mao-Jie1, DOU Xiao-Ming2,1 |
| 1Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 2School of Optical-electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093 |
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| Cite this article: |
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XU Mao-Jie, DOU Xiao-Ming 2010 Chin. Phys. Lett. 27 086802 |
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Abstract Periodic nanostripe arrays are observed on In/Si(113) surface using scanning tunneling microscopy. The stripe superstructures are identified as N×1 reconstructions elongating in [2 1 1] or [1 21] direction and consisting of one vacancy line, one Si adatom row, and N-2 In rows, in which N=5 is predominant. The vacancy line formation relieves the strain induced by the Si adatom row and In rows, and plays an important role in stabilizing the stripe structures. The stability of nanostripe structures is demonstrated by analyzing the strain-mediated interaction of vacancy lines in the framework of the Frenkel-Kontorova model, which indicates that the predominant vacancy line period of N=5 corresponds to the minimum Frenkel-Kontorova energy.
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| Keywords:
68.37.Ef
68.43.Fg
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Received: 02 June 2010
Published: 28 July 2010
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| PACS: |
68.37.Ef
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(Scanning tunneling microscopy (including chemistry induced with STM))
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68.43.Fg
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(Adsorbate structure (binding sites, geometry))
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