Adhesion properties of decagonal quasicrystals in ultrahigh vacuum

J. Y. Park; D. F. Ogletree; M. Salmeron; R. A. Ribeiro; P. C. Canfield; C. J. Jenks; P. A. Thiel

doi:10.1080/14786430500254594

Adhesion properties of decagonal quasicrystals in ultrahigh vacuum

J. Y. Park, D. F. Ogletree, M. Salmeron, R. A. Ribeiro, P. C. Canfield, C. J. Jenks, P. A. Thiel

Research output: Contribution to journal › Review article › peer-review

21 Scopus citations

Abstract

The atomic scale adhesion properties of two high-symmetry surfaces of decagonal Al-Ni-Co quasicrystals have been investigated using atomic force microscopy (AFM) in ultrahigh vacuum. Imaging the surface allowed us to distinguish the plastic regime from the elastic (reversible) regime of tip-sample contact. The work of adhesion of the atomically clean quasicrystal surface in the plastic regime is smaller than that of single crystalline Pt(111) by a factor of 10, reflecting a lower surface energy for the quasicrystal surface. However, the adhesion force must be reduced even further, in order to make measurements outside of the plastic regime possible. We present a strategy for doing this that involves chemical modification of the surface or the tip, together with appropriate choice of mechanical contact parameters.

Original language	English
Pages (from-to)	945-950
Number of pages	6
Journal	Philosophical Magazine
Volume	86
Issue number	6-8
DOIs	https://doi.org/10.1080/14786430500254594
State	Published - Feb 21 2006
Externally published	Yes

Funding

This work was supported by the Director, Office of Energy Research, Office of Basic Energy Sciences, Materials Sciences Division, of the U.S. Department of Energy through the Ames Laboratory, Contract No. W-405-Eng-82, and through the Lawrence Berkeley National Laboratory, Contract No. DE-AC02-05CH11231.

Funders	Funder number
Materials Sciences Division
Office of Energy Research
U.S. Department of Energy
Basic Energy Sciences
Lawrence Berkeley National Laboratory	DE-AC02-05CH11231
Lawrence Berkeley National Laboratory
Ames Laboratory	W-405-Eng-82
Ames Laboratory

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10.1080/14786430500254594

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abstract = "The atomic scale adhesion properties of two high-symmetry surfaces of decagonal Al-Ni-Co quasicrystals have been investigated using atomic force microscopy (AFM) in ultrahigh vacuum. Imaging the surface allowed us to distinguish the plastic regime from the elastic (reversible) regime of tip-sample contact. The work of adhesion of the atomically clean quasicrystal surface in the plastic regime is smaller than that of single crystalline Pt(111) by a factor of 10, reflecting a lower surface energy for the quasicrystal surface. However, the adhesion force must be reduced even further, in order to make measurements outside of the plastic regime possible. We present a strategy for doing this that involves chemical modification of the surface or the tip, together with appropriate choice of mechanical contact parameters.",

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AU - Ogletree, D. F.

AU - Salmeron, M.

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AU - Canfield, P. C.

AU - Jenks, C. J.

AU - Thiel, P. A.

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AB - The atomic scale adhesion properties of two high-symmetry surfaces of decagonal Al-Ni-Co quasicrystals have been investigated using atomic force microscopy (AFM) in ultrahigh vacuum. Imaging the surface allowed us to distinguish the plastic regime from the elastic (reversible) regime of tip-sample contact. The work of adhesion of the atomically clean quasicrystal surface in the plastic regime is smaller than that of single crystalline Pt(111) by a factor of 10, reflecting a lower surface energy for the quasicrystal surface. However, the adhesion force must be reduced even further, in order to make measurements outside of the plastic regime possible. We present a strategy for doing this that involves chemical modification of the surface or the tip, together with appropriate choice of mechanical contact parameters.

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Adhesion properties of decagonal quasicrystals in ultrahigh vacuum

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