Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevB.70.081313
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dc.titleSTM observation of Ga-dimers on a GaAs(001)-c(8 × 2)-Ga surface
dc.contributor.authorXu, H.
dc.contributor.authorSun, Y.Y.
dc.contributor.authorLi, Y.G.
dc.contributor.authorFeng, Y.P.
dc.contributor.authorWee, A.T.S.
dc.contributor.authorHuan, A.C.H.
dc.date.accessioned2014-10-16T09:42:07Z
dc.date.available2014-10-16T09:42:07Z
dc.date.issued2004-08
dc.identifier.citationXu, H., Sun, Y.Y., Li, Y.G., Feng, Y.P., Wee, A.T.S., Huan, A.C.H. (2004-08). STM observation of Ga-dimers on a GaAs(001)-c(8 × 2)-Ga surface. Physical Review B - Condensed Matter and Materials Physics 70 (8) : 081313-1. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.70.081313
dc.identifier.issn01631829
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/98025
dc.description.abstractUsing in situ scanning tunneling microscopy (STM) we have obtained high-resolution empty-state images exhibiting triple-protrusion rows on GaAs(001)-c(8 × 2)-Ga surface. We assign the middle protrusion rows to the surface Ga dimers in the ξ model proposed by Lee et al. [Phys. Rev. Lett. 85, 3890 (2000)]. The surface Ga dimers, which are responsible for the c(8 × 2) periodicity, are the key feature of the ξ structure and have never been imaged in previous STM studies. The current study provides direct evidence for the ξ model, while all other existing models can be readily excluded from our STM images.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1103/PhysRevB.70.081313
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1103/PhysRevB.70.081313
dc.description.sourcetitlePhysical Review B - Condensed Matter and Materials Physics
dc.description.volume70
dc.description.issue8
dc.description.page081313-1
dc.description.codenPRBMD
dc.identifier.isiut000223716700017
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