Systematics of disorder in quasiperiodic material
PM Horn, W Malzfeldt, DP DiVincenzo, J Toner… - Physical review …, 1986 - APS
PM Horn, W Malzfeldt, DP DiVincenzo, J Toner, R Gambino
Physical review letters, 1986•APSWe report new x-ray scattering data on AlMn alloys. None of our samples are perfect
quasicrystals; all have finite-width x-ray peaks. Specific preparation techniques lead to
samples with peak widths which correlate strongly with G⊥(phason momentum). We show
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⊥.
quasicrystals; all have finite-width x-ray peaks. Specific preparation techniques lead to
samples with peak widths which correlate strongly with G⊥(phason momentum). We show
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⊥.
Abstract
We report new x-ray scattering data on AlMn alloys. None of our samples are perfect quasicrystals; all have finite-width x-ray peaks. Specific preparation techniques lead to samples with peak widths which correlate strongly with G⊥(phason momentum). We show 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⊥.
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