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Structure of the indium-rich InSb(001) surface


Structure of the indium-rich InSb(001) surface

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dc.contributor.author Goryl, Grzegorz [USOS7932] pl
dc.contributor.author Toton, Dawid [USOS578] pl
dc.contributor.author Tomaszewska, Natalia pl
dc.contributor.author Prauzner-Bechcicki, Jakub [SAP11019528] pl
dc.contributor.author Walczak, Łukasz [SAP13037732] pl
dc.contributor.author Tejeda, Antonio pl
dc.contributor.author Taleb-Ibrahimi, Amina pl
dc.contributor.author Kantorovich, Lev pl
dc.contributor.author Michel, Enrique García pl
dc.contributor.author Kołodziej, Jacek [SAP11013861] pl
dc.date.accessioned 2015-01-26T09:39:45Z
dc.date.available 2015-01-26T09:39:45Z
dc.date.issued 2010 pl
dc.identifier.issn 1098-0121 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/2732
dc.language eng pl
dc.rights Dodaję tylko opis bibliograficzny *
dc.rights.uri *
dc.title Structure of the indium-rich InSb(001) surface pl
dc.type JournalArticle pl
dc.abstract.en The indium-rich InSb(001) surface, that shows the c(8×2) reconstruction at room temperature and a partially disordered phase at 77 K (the low temperature or LT phase), is studied experimentally by means of scanning probe microscopies, low-energy electron diffraction, and angle-resolved photoelectron spectroscopy (ARPES), as well as theoretically, using the density-functional theory (DFT). The experimental studies are done both at room temperature and at cryogenic temperatures. No metallic surface bands are found using ARPES, consequently the idea of charge-density waves as a possible explanation of the LT phase suggested previously by Goryl et al. [Surf. Sci. 601, 3605 (2007)] is discarded. On the other hand it is shown that an essential core of the surface structure is described by the so-called ζ model which has the c(8×2) symmetry. However, on top of this basic structure there are additional not fully occupied indium-atom rows. Vacancies/atoms in these rows rapidly fluctuate at room temperature while, upon cooling down, they stabilize to form a sublattice also of c(8×2) symmetry. Furthermore, this sublattice has shifted mirror symmetry axes (relating to those of the underlying ζ lattice) therefore the surface symmetry is lowered from c2mm to p2 and structural domains are formed. This occurs with no significant core ζ lattice distortions but dense domain borders lead to significant disorder in the top atomic layer. DFT calculations confirm that the postulated ζ-like structure with additional 50% occupied indium-atom rows is stable on the InSb (001) surface. Calculated, in the Tersoff-Hammann approximation, scanning tunneling microscopy (STM) images of the relaxed surface structure agree well with experimental STM images. pl
dc.description.volume 82 pl
dc.description.number 16 pl
dc.description.publication 1 pl
dc.identifier.doi 10.1103/PhysRevB.82.165311 pl
dc.identifier.eissn 1550-235X pl
dc.identifier.eissn 1538-4489 pl
dc.title.journal Physical Review. B, Condensed Matter and Materials Physics pl
dc.language.container eng pl
dc.affiliation Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego pl
dc.subtype Article pl
dc.identifier.articleid 165311 pl

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