Superstructures on thin Al2O3 grown on Ni3Al(001)

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Thin ordered layers of Al2O3 grown on a metallic Ni3Al(0 0 1) substrate were studied using UHV STM and LEED. The oxidn. of the substrate at 800 K and 1100 K forms different structural phases of Al2O3. Oxidn. of Ni3Al(0 0 1) at 800 K leads to a simple surface pattern, while oxidn. at 1100 K results in a variety of surface patterns revealing superimposed quasi-periodic superstructures larger than expected from a simple moire model. At. resoln. achieved with STM on the Al2O3 surface allows us to det. all possible mutual orientations of the cryst. lattices. The spectroscopic STM dI/dV plots indicated different electronic properties at various points on the oxide superstructure. We conjecture that they can be attributed to ordering of structural patches distributed in a regular way. [on SciFinder (R)]
Originele taal-2Engels
Pagina's (van-tot)4375-4379
TijdschriftSurface Science
Volume600
Nummer van het tijdschrift18
DOI's
StatusGepubliceerd - 2006

Vingerafdruk

Substrates
Electronic properties
Oxides
plots
oxides
electronics

Citeer dit

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title = "Superstructures on thin Al2O3 grown on Ni3Al(001)",
abstract = "Thin ordered layers of Al2O3 grown on a metallic Ni3Al(0 0 1) substrate were studied using UHV STM and LEED. The oxidn. of the substrate at 800 K and 1100 K forms different structural phases of Al2O3. Oxidn. of Ni3Al(0 0 1) at 800 K leads to a simple surface pattern, while oxidn. at 1100 K results in a variety of surface patterns revealing superimposed quasi-periodic superstructures larger than expected from a simple moire model. At. resoln. achieved with STM on the Al2O3 surface allows us to det. all possible mutual orientations of the cryst. lattices. The spectroscopic STM dI/dV plots indicated different electronic properties at various points on the oxide superstructure. We conjecture that they can be attributed to ordering of structural patches distributed in a regular way. [on SciFinder (R)]",
author = "O. Kurnosikov and C.F.J. Flipse and H.J.M. Swagten and B. Koopmans and {Jonge, de}, W.J.M.",
year = "2006",
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language = "English",
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}

Superstructures on thin Al2O3 grown on Ni3Al(001). / Kurnosikov, O.; Flipse, C.F.J.; Swagten, H.J.M.; Koopmans, B.; Jonge, de, W.J.M.

In: Surface Science, Vol. 600, Nr. 18, 2006, blz. 4375-4379.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - Superstructures on thin Al2O3 grown on Ni3Al(001)

AU - Kurnosikov, O.

AU - Flipse, C.F.J.

AU - Swagten, H.J.M.

AU - Koopmans, B.

AU - Jonge, de, W.J.M.

PY - 2006

Y1 - 2006

N2 - Thin ordered layers of Al2O3 grown on a metallic Ni3Al(0 0 1) substrate were studied using UHV STM and LEED. The oxidn. of the substrate at 800 K and 1100 K forms different structural phases of Al2O3. Oxidn. of Ni3Al(0 0 1) at 800 K leads to a simple surface pattern, while oxidn. at 1100 K results in a variety of surface patterns revealing superimposed quasi-periodic superstructures larger than expected from a simple moire model. At. resoln. achieved with STM on the Al2O3 surface allows us to det. all possible mutual orientations of the cryst. lattices. The spectroscopic STM dI/dV plots indicated different electronic properties at various points on the oxide superstructure. We conjecture that they can be attributed to ordering of structural patches distributed in a regular way. [on SciFinder (R)]

AB - Thin ordered layers of Al2O3 grown on a metallic Ni3Al(0 0 1) substrate were studied using UHV STM and LEED. The oxidn. of the substrate at 800 K and 1100 K forms different structural phases of Al2O3. Oxidn. of Ni3Al(0 0 1) at 800 K leads to a simple surface pattern, while oxidn. at 1100 K results in a variety of surface patterns revealing superimposed quasi-periodic superstructures larger than expected from a simple moire model. At. resoln. achieved with STM on the Al2O3 surface allows us to det. all possible mutual orientations of the cryst. lattices. The spectroscopic STM dI/dV plots indicated different electronic properties at various points on the oxide superstructure. We conjecture that they can be attributed to ordering of structural patches distributed in a regular way. [on SciFinder (R)]

U2 - 10.1016/j.susc.2006.02.079

DO - 10.1016/j.susc.2006.02.079

M3 - Article

VL - 600

SP - 4375

EP - 4379

JO - Surface Science

JF - Surface Science

SN - 0039-6028

IS - 18

ER -