Formation of a quasicrystalline Pb monolayer on the 10-fold surface of the decagonal Al-Ni-Co quasicrystal

J. A. Smerdon; L. Leung; J. K. Parle; C. J. Jenks; R. McGrath; V. Fournée; J. Ledieu

doi:10.1016/j.susc.2008.05.029

Formation of a quasicrystalline Pb monolayer on the 10-fold surface of the decagonal Al-Ni-Co quasicrystal

J. A. Smerdon, L. Leung, J. K. Parle, C. J. Jenks, R. McGrath, V. Fournée, J. Ledieu

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

Lead has been deposited on the 10-fold surface of decagonal Al₇₂Ni₁₁Co₁₇ at room temperature to form an epitaxial quasicrystalline single-element monolayer. The overlayer grows through nucleation of nanometer-sized irregular-shaped islands and the coverage saturates at 1 MLE. The overlayer is well-ordered quasiperiodically as evidenced by LEED and Fourier transforms of STM images. LEED measurements also indicate that annealing the film to 600 K improves the structural quality, but STM shows that this causes the film to develop pores. Adsorption of C₆₀ molecules on this surface showed that the pores are Pb-containing. Electronic structure measurements using X-ray photoemission spectroscopy indicate that the chemical interaction of the Pb atoms with the substrate is weak, and that Pb does not desorb from the surface upon annealing.

Original language	English
Pages (from-to)	2496-2501
Number of pages	6
Journal	Surface Science
Volume	602
Issue number	14
DOIs	https://doi.org/10.1016/j.susc.2008.05.029
State	Published - Jul 15 2008
Externally published	Yes

Funding

The UK Engineering and Physical Sciences Research Council (Grant No. EP/D05253X/1) and the European Union Network of Excellence “Complex metallic alloys” Grant No. NMP3-CT-2005-500145 are thanked for financial support. Ian Fisher (Stanford University) is thanked for his help in growing the sample. We are grateful to Jim Evans (Ames Laboratory) for helpful discussions.

Funders	Funder number
European Union Network of Excellence	NMP3-CT-2005-500145
Engineering and Physical Sciences Research Council	EP/D05253X/1

Keywords

Epitaxy
Lead
LEED
Quasicrystal
STM

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10.1016/j.susc.2008.05.029

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title = "Formation of a quasicrystalline Pb monolayer on the 10-fold surface of the decagonal Al-Ni-Co quasicrystal",

abstract = "Lead has been deposited on the 10-fold surface of decagonal Al72Ni11Co17 at room temperature to form an epitaxial quasicrystalline single-element monolayer. The overlayer grows through nucleation of nanometer-sized irregular-shaped islands and the coverage saturates at 1 MLE. The overlayer is well-ordered quasiperiodically as evidenced by LEED and Fourier transforms of STM images. LEED measurements also indicate that annealing the film to 600 K improves the structural quality, but STM shows that this causes the film to develop pores. Adsorption of C60 molecules on this surface showed that the pores are Pb-containing. Electronic structure measurements using X-ray photoemission spectroscopy indicate that the chemical interaction of the Pb atoms with the substrate is weak, and that Pb does not desorb from the surface upon annealing.",

keywords = "Epitaxy, Lead, LEED, Quasicrystal, STM",

author = "Smerdon, {J. A.} and L. Leung and Parle, {J. K.} and Jenks, {C. J.} and R. McGrath and V. Fourn{\'e}e and J. Ledieu",

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AU - Smerdon, J. A.

AU - Leung, L.

AU - Parle, J. K.

AU - Jenks, C. J.

AU - McGrath, R.

AU - Fournée, V.

AU - Ledieu, J.

PY - 2008/7/15

Y1 - 2008/7/15

N2 - Lead has been deposited on the 10-fold surface of decagonal Al72Ni11Co17 at room temperature to form an epitaxial quasicrystalline single-element monolayer. The overlayer grows through nucleation of nanometer-sized irregular-shaped islands and the coverage saturates at 1 MLE. The overlayer is well-ordered quasiperiodically as evidenced by LEED and Fourier transforms of STM images. LEED measurements also indicate that annealing the film to 600 K improves the structural quality, but STM shows that this causes the film to develop pores. Adsorption of C60 molecules on this surface showed that the pores are Pb-containing. Electronic structure measurements using X-ray photoemission spectroscopy indicate that the chemical interaction of the Pb atoms with the substrate is weak, and that Pb does not desorb from the surface upon annealing.

AB - Lead has been deposited on the 10-fold surface of decagonal Al72Ni11Co17 at room temperature to form an epitaxial quasicrystalline single-element monolayer. The overlayer grows through nucleation of nanometer-sized irregular-shaped islands and the coverage saturates at 1 MLE. The overlayer is well-ordered quasiperiodically as evidenced by LEED and Fourier transforms of STM images. LEED measurements also indicate that annealing the film to 600 K improves the structural quality, but STM shows that this causes the film to develop pores. Adsorption of C60 molecules on this surface showed that the pores are Pb-containing. Electronic structure measurements using X-ray photoemission spectroscopy indicate that the chemical interaction of the Pb atoms with the substrate is weak, and that Pb does not desorb from the surface upon annealing.

KW - Epitaxy

KW - Lead

KW - LEED

KW - Quasicrystal

KW - STM

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DO - 10.1016/j.susc.2008.05.029

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SN - 0039-6028

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JO - Surface Science

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Formation of a quasicrystalline Pb monolayer on the 10-fold surface of the decagonal Al-Ni-Co quasicrystal

Abstract

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Keywords

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