Structure of the fivefold surface of the icosahedral Al-Cu-Fe quasicrystal: Experimental evidence of bulk truncations at larger interlayer spacings

H. R. Sharma; V. Fournée; M. Shimoda; A. R. Ross; T. A. Lograsso; A. P. Tsai; A. Yamamoto

doi:10.1103/PhysRevLett.93.165502

Structure of the fivefold surface of the icosahedral Al-Cu-Fe quasicrystal: Experimental evidence of bulk truncations at larger interlayer spacings

H. R. Sharma, V. Fournée, M. Shimoda, A. R. Ross, T. A. Lograsso, A. P. Tsai, A. Yamamoto

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Abstract

Structural analysis of the fivefold i-Al-Cu-Fe surface based on new scanning tunneling microscopy (STM) results and a recent refined structure model of the isostructural i-Al-Pd-Mn was investigated. It was found that the surface corresponds to the bulk truncations at the positions where blocks of atomic layers were separated by larger interlayer spacings. STM images were recorded at room temperature with an Omicron STM with tunneling currents of 0.15-0.25 nA and bias voltages of 1.0-2.6 V. Both step-height distribution and high resolution images on terraces strongly reveal that the surface corresponds to the bulk truncations at larger interlayer spacings.

Original language	English
Article number	165502
Pages (from-to)	165502-1-165502-4
Journal	Physical review letters
Volume	93
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevLett.93.165502
Publication status	Published - 2004 Oct 15
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.93.165502

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title = "Structure of the fivefold surface of the icosahedral Al-Cu-Fe quasicrystal: Experimental evidence of bulk truncations at larger interlayer spacings",

abstract = "Structural analysis of the fivefold i-Al-Cu-Fe surface based on new scanning tunneling microscopy (STM) results and a recent refined structure model of the isostructural i-Al-Pd-Mn was investigated. It was found that the surface corresponds to the bulk truncations at the positions where blocks of atomic layers were separated by larger interlayer spacings. STM images were recorded at room temperature with an Omicron STM with tunneling currents of 0.15-0.25 nA and bias voltages of 1.0-2.6 V. Both step-height distribution and high resolution images on terraces strongly reveal that the surface corresponds to the bulk truncations at larger interlayer spacings.",

author = "Sharma, {H. R.} and V. Fourn{\'e}e and M. Shimoda and Ross, {A. R.} and Lograsso, {T. A.} and Tsai, {A. P.} and A. Yamamoto",

note = "Funding Information: This work was partially supported by SORST, JST and GASR, Ministry of ECSST, Japan. We thank W. Theis and F. U. Berlin for critical reading of the manuscript.",

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AU - Sharma, H. R.

AU - Fournée, V.

AU - Shimoda, M.

AU - Ross, A. R.

AU - Lograsso, T. A.

AU - Tsai, A. P.

AU - Yamamoto, A.

N1 - Funding Information: This work was partially supported by SORST, JST and GASR, Ministry of ECSST, Japan. We thank W. Theis and F. U. Berlin for critical reading of the manuscript.

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Y1 - 2004/10/15

N2 - Structural analysis of the fivefold i-Al-Cu-Fe surface based on new scanning tunneling microscopy (STM) results and a recent refined structure model of the isostructural i-Al-Pd-Mn was investigated. It was found that the surface corresponds to the bulk truncations at the positions where blocks of atomic layers were separated by larger interlayer spacings. STM images were recorded at room temperature with an Omicron STM with tunneling currents of 0.15-0.25 nA and bias voltages of 1.0-2.6 V. Both step-height distribution and high resolution images on terraces strongly reveal that the surface corresponds to the bulk truncations at larger interlayer spacings.

AB - Structural analysis of the fivefold i-Al-Cu-Fe surface based on new scanning tunneling microscopy (STM) results and a recent refined structure model of the isostructural i-Al-Pd-Mn was investigated. It was found that the surface corresponds to the bulk truncations at the positions where blocks of atomic layers were separated by larger interlayer spacings. STM images were recorded at room temperature with an Omicron STM with tunneling currents of 0.15-0.25 nA and bias voltages of 1.0-2.6 V. Both step-height distribution and high resolution images on terraces strongly reveal that the surface corresponds to the bulk truncations at larger interlayer spacings.

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Structure of the fivefold surface of the icosahedral Al-Cu-Fe quasicrystal: Experimental evidence of bulk truncations at larger interlayer spacings

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