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Direct Imaging of Local Chemical Disorder and Columnar Vacancies in Ideal Decagonal Al-Ni-Co Quasicrystals
Phys. Rev. Lett. 81, 5145 – Published 7 December, 1998
DOI: https://doi.org/10.1103/PhysRevLett.81.5145
Abstract
Atomic-resolution -contrast images provide direct images of chemical disorder and columnar vacancies in an ideal Al-Ni-Co decagonal quasicrystal. Chemical disorder occurs in the central ring of the 2 nm clusters and involves both Al and Ni(Co) atoms. Columnar vacancies are observed in the form of closely spaced, half-occupied atomic columns in specific rings within the clusters. This structure, derived from real space images, differs significantly from previous atomic models.
Comments & Replies
Chatzidimitriou-Dreismann and Abdul-Redah Reply:
Phys. Rev. Lett. 82, 4369 (1999)
Comment on “Evidence of Quantum Correlation Effects of Protons and Deuterons in Raman Spectra of Liquid ”
Phys. Rev. Lett. 82, 4368 (1999)
Yan, Pennycook, and Pang Reply:
Phys. Rev. Lett. 82, 4367 (1999)
Comment on “Direct Imaging of Local Chemical Disorder and Columnar Vacancies in Ideal Decagonal Al-Ni-Co Quasicrystals”
Phys. Rev. Lett. 82, 4366 (1999)
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