Surface preparation and characterization of the icosahedral Al-Ga-Pd-Mn quasicrystal

Mark Heinzig; Cynthia J. Jenks; Michel Van Hove; Ian Fisher; Paul Canfield; Patricia A. Thiel

doi:10.1016/S0925-8388(02)00238-4

Surface preparation and characterization of the icosahedral Al-Ga-Pd-Mn quasicrystal

Mark Heinzig, Cynthia J. Jenks, Michel Van Hove, Ian Fisher, Paul Canfield, Patricia A. Thiel

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

12 Scopus citations

Abstract

Auger electron spectroscopy and low-energy electron diffraction (LEED) provide basic information about the structure and composition of the 5-fold surface of the quaternary quasicrystal, icosahedral Al₆₇Ga₄Pd₂₁Mn₈. Surface preparation techniques established previously for two of the icosahedral ternary alloys, Al-Pd-Mn and Al-Cu-Fe, appear to be similarly effective for Al-Ga-Pd-Mn. After annealing in the range 600-950 K, the surface concentration of Ga is constant and low. After annealing in the range 900-950 K, a good LEED pattern is obtained. LEED indicates that Ga changes the surface structure significantly.

Original language	English
Pages (from-to)	248-252
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	338
Issue number	1-2 SPEC.
DOIs	https://doi.org/10.1016/S0925-8388(02)00238-4
State	Published - May 16 2002
Externally published	Yes

Funding

This work was supported by the Director, Office of Science, Office of Basic Energy Science, Materials Science Division of the US Department of Energy under contract numbers W-405-Eng-82 (Ames Laboratory) and DE-AC03-76SF00098 (Lawrence Berkeley National Laboratory).

Keywords

Auger electron spectroscopy
Intermetallics
Low-energy electron diffraction
Quasicrystals
Surfaces

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10.1016/S0925-8388(02)00238-4

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title = "Surface preparation and characterization of the icosahedral Al-Ga-Pd-Mn quasicrystal",

abstract = "Auger electron spectroscopy and low-energy electron diffraction (LEED) provide basic information about the structure and composition of the 5-fold surface of the quaternary quasicrystal, icosahedral Al67Ga4Pd21Mn8. Surface preparation techniques established previously for two of the icosahedral ternary alloys, Al-Pd-Mn and Al-Cu-Fe, appear to be similarly effective for Al-Ga-Pd-Mn. After annealing in the range 600-950 K, the surface concentration of Ga is constant and low. After annealing in the range 900-950 K, a good LEED pattern is obtained. LEED indicates that Ga changes the surface structure significantly.",

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T1 - Surface preparation and characterization of the icosahedral Al-Ga-Pd-Mn quasicrystal

AU - Heinzig, Mark

AU - Jenks, Cynthia J.

AU - Van Hove, Michel

AU - Fisher, Ian

AU - Canfield, Paul

AU - Thiel, Patricia A.

PY - 2002/5/16

Y1 - 2002/5/16

N2 - Auger electron spectroscopy and low-energy electron diffraction (LEED) provide basic information about the structure and composition of the 5-fold surface of the quaternary quasicrystal, icosahedral Al67Ga4Pd21Mn8. Surface preparation techniques established previously for two of the icosahedral ternary alloys, Al-Pd-Mn and Al-Cu-Fe, appear to be similarly effective for Al-Ga-Pd-Mn. After annealing in the range 600-950 K, the surface concentration of Ga is constant and low. After annealing in the range 900-950 K, a good LEED pattern is obtained. LEED indicates that Ga changes the surface structure significantly.

AB - Auger electron spectroscopy and low-energy electron diffraction (LEED) provide basic information about the structure and composition of the 5-fold surface of the quaternary quasicrystal, icosahedral Al67Ga4Pd21Mn8. Surface preparation techniques established previously for two of the icosahedral ternary alloys, Al-Pd-Mn and Al-Cu-Fe, appear to be similarly effective for Al-Ga-Pd-Mn. After annealing in the range 600-950 K, the surface concentration of Ga is constant and low. After annealing in the range 900-950 K, a good LEED pattern is obtained. LEED indicates that Ga changes the surface structure significantly.

KW - Auger electron spectroscopy

KW - Intermetallics

KW - Low-energy electron diffraction

KW - Quasicrystals

KW - Surfaces

UR - https://www.scopus.com/pages/publications/0037118171

U2 - 10.1016/S0925-8388(02)00238-4

DO - 10.1016/S0925-8388(02)00238-4

M3 - Article

AN - SCOPUS:0037118171

SN - 0925-8388

VL - 338

SP - 248

EP - 252

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2 SPEC.

ER -

Surface preparation and characterization of the icosahedral Al-Ga-Pd-Mn quasicrystal

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