Systematics of disorder in quasiperiodic material

New X-ray scattering data on AlMn alloys are reported. None of the samples were perfect quasicrystals; all had finite-width X-ray peaks. Specific preparation techniques lead to samples with peak widths which correlate strongly with G sub perpindicular to (phason momentum). It is shown that the data...

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Veröffentlicht in:	Physical review letters 1986-09, Vol.57 (12), p.1444-1447
Hauptverfasser:	HORN, P. M, MALZFELDT, W, DIVINCENZO, D. P, TONER, J, GAMBINO, R
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Exact sciences and technology Materials science Metals, semimetals and alloys Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Other interactions of matter with particles and radiation Physics Specific materials
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Beschreibung
Zusammenfassung:	New X-ray scattering data on AlMn alloys are reported. None of the samples were perfect quasicrystals; all had finite-width X-ray peaks. Specific preparation techniques lead to samples with peak widths which correlate strongly with G sub perpindicular to (phason momentum). It is shown that the data are consistent with either frozen-in phason strain or random icosahedral packing. These two models predict surprisingly similar but potentially distinguishable scattering widths, differing in their detailed dependence on G sub perpindicular to . 17 ref.--AA
ISSN:	0031-9007 1079-7114
DOI:	10.1103/physrevlett.57.1444