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Quasi-one-dimensional In atomic chains on Si(1 1 1) at low temperature studied by reflection high-energy positron diffraction and scanning tunneling microscopy

✍ Scribed by M. Hashimoto; Y. Fukaya; A. Kawasuso; A. Ichimiya


Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
387 KB
Volume
254
Category
Article
ISSN
0169-4332

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✦ Synopsis


We have investigated a quasi-one-dimensional structure of Si(1 1 1)-8 Â 2-In surface using reflection high-energy positron diffraction (RHEPD) and scanning tunneling microscopy (STM). From the RHEPD rocking curve analyses, we confirmed the formation of the In hexagon structure proposed by Gonza ´lez et al. [C. Gonza ´lez, F. Flores, J. Ortega, Phys. Rev. Lett. 96 (2006) 136101]. Furthermore, we found that the emptystate STM image at 44 K is consistent with that calculated with the optimum hexagon structure by the RHEPD analyses.