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Image: Ho-Mg-ZnQuasicrystal

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Ho-Mg-ZnQuasicrystal.jpg ‎(548 × 464 pixels, file size: 40 KB, MIME type: image/jpeg)

Description: Ho-Mg-Zn dodecahedral quasicrystal, grown 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. Or: Photograph of a single-grain icosahedral Ho-Mg-Zn quasicrystal grown from the ternary melt. Shown over a mm scale, the edges are 2.2 mm long. Note the clearly defined pentagonal facets, and the dodecahedral morphology. [in: Phys. Rev. B 59, 308–321 (1999)]
Title: Ho-Mg-ZnQuasicrystal
Credit: http://cmp.ameslab.gov/personnel/canfield/photos.html#
Author: AMES lab., US Department of Energy
Usage Terms: Public domain
License: Public domain
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