A simulation study demonstrates that localization can arise as the result ofthe breakdown of stable quasi-crystal-like atomic configurations. Samplesproduced at elevated quench rates and via more energetic processes contain alower fraction of such configurations and exhibit significantly less pronouncedlocalization and shorter spacing between bands. In the samples produced by thelowest quench rates localization is accompanied by the amorphization ofmaterial with initially quasi-crystal-like medium range order. This result isof particular significance in light of recent experimental evidence of localquasi-crystal order in the most stable of the bulk metallic glasses.
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