Image icon  Zn-Mg-Ho icosahedral quasicrystal

 
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Description: This photograph shows a single-grain icosahedral Ho-Mg-Zn quasicrystal grown from the ternary melt: by using the self-flux method (excess Mg), and slowly cooling from 700°C to 480°C. The R-Mg-Zn family is the first rare-earth containing quasicrystal structure, which allows the study of localized magnetic moments in a quasiperiodic environment. Shown over a mm scale, the edges are 2.2 mm long. Note the clearly defined pentagonal facets, and the dodecahedral morphology. Published in Phys. Rev. B 59, 308-321 (1999)
Keywords: icosahedral • self-flux method • Zn-Mg-Ho • quasicrystal
Categories: Science approaches > Structure, bonding & defects > Crystallography
Materials > Metals & alloys > Other metals & alloys > Zinc & alloys
Properties > Electrical, magnetic & optical
Testing, analysis & experimentation
Created by: Paul Canfield, AMES Laboratory, US Department of Energy
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Date created: 22 April 1999
Date added: 05 October 2011
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Resource ID: 3729