Self-organized molecular-sized, hexagonally ordered SnO[sub x] nanodot superlattices on Pt(111)

Batzill, Matthias; Beck, David E.; Koel, Bruce E.
April 2001
Applied Physics Letters;4/30/2001, Vol. 78 Issue 18, p2766
Academic Journal
Complete oxidation of the (&sqrt;3x&sqrt;3)R30° Sn/Pt(111) surface alloy or submonolayer amounts of Sn adatoms on Pt(111) under ultrahigh vacuum conditions, forms a highly ordered, lateral superlattice of SnO[sub x] islands on the Pt(111) substrate. The island superstructure exhibits a sharp (5x5) low energy electron diffraction pattern. Scanning tunneling microscopy images show islands arranged in a hexagonal lattice, uniformly distributed over the whole sample. This island array is thermally stable up to 1050 K. The coincidence of the island periodicity with a multiple of the supporting substrate, and the same hexagonal symmetry of islands and substrate, suggests a strong island-substrate interaction. We propose that the island formation results from the breakup of a strained SnO[sub x] adlayer. © 2001 American Institute of Physics.


Related Articles

  • Semiconducting superlattices templated by molecular assemblies. Braun, Paul V.; Osenar, Paul // Nature;3/28/1996, Vol. 380 Issue 6572, p325 

    Describes the growth of stable semiconductor-organic superlattices based on cadmium sulphide and cadmium selenide. Anticipation that this organic-inorganic nanostructured composite, like others before, can be tailored for photosynthetic and photocatalytic applications; Technological...

  • Self-assembled ErAs islands in GaAs: Growth and subpicosecond carrier dynamics. Kadow, C.; Fleischer, S. B. // Applied Physics Letters;11/29/1999, Vol. 75 Issue 22, p3548 

    Studies self-assembled ErAs islands in GaAs. Nucleation of ErAs on GaAs; Results of pump-probe measurements; Superlattice fringing; Spontaneous formation of nanometer-sized islands.

  • Wannier–Stark localization in asymmetric double-well superlattices. Agulló-Rueda, F.; Grahn, H. T.; Ploog, K. // Journal of Applied Physics;5/15/1996, Vol. 79 Issue 10, p8106 

    Focuses on a study which investigated Wannier-Stark localization in an asymmetric double-well superlattice. Effect of electric fields on semiconductor nanostructures; Details on the sample structure; Information on stark ladders.

  • "Inverted hut" structure of Si-Ge nanocrystals studied by extended x-ray absorption fine structure method. Soo, Y. L.; Kioseoglou, G.; Huang, S.; Kim, S.; Kao, Y. H.; Peng, Y. H.; Cheng, H. H. // Applied Physics Letters;6/4/2001, Vol. 78 Issue 23, p3684 

    Local structure around Ge in Si/Ge superlattices containing the "inverted hut" nanocrystals has been investigated by using the extended x-ray absorption fine structure (EXAFS) technique. In contrast to the usual nanometer-sized Ge "hut clusters" commonly grown on top of Si layers using the...

  • Intrinsic and extrinsic origins of low-frequency noise in GaAs/AlGaAs Schottky-gated nanostructures. Hitachi, Kenichi; Ota, Takeshi; Muraki, Koji // Applied Physics Letters;5/13/2013, Vol. 102 Issue 19, p192104 

    We study low-frequency noise in current passing through quantum point contacts fabricated from several GaAs/AlGaAs heterostructures with different layer structures and fabrication processes. In contrast to previous reports, there is no gate-dependent random telegraph noise (RTN) originating from...

  • Synthetically programmable nanoparticle superlattices using a hollow three-dimensional spacer approach. Auyeung, Evelyn; Cutler, Joshua I.; Macfarlane, Robert J.; Jones, Matthew R.; Wu, Jinsong; Liu, George; Zhang, Ke; Osberg, Kyle D.; Mirkin, Chad A. // Nature Nanotechnology;Jan2012, Vol. 7 Issue 1, p24 

    Crystalline nanoparticle arrays and superlattices with well-defined geometries can be synthesized by using appropriate electrostatic, hydrogen-bonding or biological recognition interactions. Although superlattices with many distinct geometries can be produced using these approaches, the library...

  • Three-Dimensional Self-Shaping Nanostructures Based on Free Stressed Heterofilms. Prinz, V. Ya. // Russian Physics Journal;Jun2003, Vol. 46 Issue 6, p568 

    The present review examines the formation of three-dimensional nanostructures (nanoshells, nanotubes, nanospirals, nanorings, etc.) from single-crystal heterostructures based on III–V Si/GeSi semiconductors as well as metal and hybrid heterostructures. New results on the formation of...

  • Tuning exchange bias in Ni/FeF2 heterostructures using antidot arrays. Kovylina, M.; Erekhinsky, M.; Morales, R.; Villegas, J. E.; Schuller, I. K.; Labarta, A.; Batlle, X. // Applied Physics Letters;10/12/2009, Vol. 95 Issue 15, p152507 

    The transition from positive to negative exchange bias can be systematically tuned with antidot arrays artificially introduced into Ni/FeF2 ferromagnetic/antiferromagnetic heterostructures. These results are a consequence of the energy balance and suggest that the nanostructure plays a key role...

  • Effect of nanodot areal density and period on thermal conductivity in SiGe/Si nanodot superlattices. Lee, Minjoo Larry; Venkatasubramanian, Rama // Applied Physics Letters;2/4/2008, Vol. 92 Issue 5, p053112 

    We report on the effect of nanodot (ND) areal density and period on cross-plane thermal conductivity κ⊥ in SiGe/Si nanodot superlattices (NDSLs). For all ND areal densities considered, we found that κ⊥ in SiGe/Si NDSLs decreased monotonically with decreasing period and reached...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics