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Amorphous Al-M films, where M=Cr, Mn, and Fe, were made by coevaporation and by room-temperature ion irradiation of multilayer films. The amorphous phase was transformed into the quasicrystalline state by ion-beam-assisted thermal anneals. All of the systems examined have essentially the same reciprocal-lattice spacings and fivefold diffraction patterns.
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Lilienfeld et al. (1986) studied this question.
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