Ho-Mg-ZnQuasicrystal

Autor:

AMES lab., US Department of Energy

Credit:

http://cmp.ameslab.gov/personnel/canfield/photos.html#

Krótki link:

https://www.plwiki.pl/b/3d3a3

źródło:

Wikimedia Commons

Wymiary:

548 x 464 Pixel (41326 Bytes)

Opis:

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)]

Licencja:

Public domain