High-energy X-ray diffraction studies of i-Sc12Zn88

Date
2011-07-01
Authors
Goldman, Alan
Kreyssig, Andreas
Nandi, S.
Kim, M. G.
Caudle, M. L.
Canfield, Paul
Journal Title
Journal ISSN
Volume Title
Publisher
Altmetrics
Authors
Research Projects
Organizational Units
Ames Laboratory
Organizational Unit
Physics and Astronomy
Organizational Unit
Journal Issue
Series
Abstract

Although quasicrystals form in a wide variety of ternary and quaternary metallic alloys, examples of stable binary icosahedral quasicrystals are quite rare. Indeed, it has been a decade since the discovery of icosahedral phases in Yb–Cd and Ca–Cd. We have discovered millimeter-sized facetted grains of i-Sc12Zn88 with icosahedral (pentagonal dodecahedral and rhombic triacontahedral) morphologies in solution-grown samples. Structural characterization of the bulk icosahedral phase was accomplished through single-grain high-energy X-ray diffraction. For both growth morphologies, all diffraction peaks could be indexed by a primitive (P-type) icosahedral phase. The two types of morphology do, however, present interesting differences in their respective degrees of quasicrystalline order.

Description

This article is published by Taylor & Francis as Goldman, A. I., A. Kreyssig, S. Nandi, M. G. Kim, M. L. Caudle, and P. C. Canfield. "High-energy X-ray diffraction studies of i-Sc12Zn88." Philosophical Magazine 91, no. 19-21 (2011): 2427-2433. DOI: 10.1080/14786435.2010.511599.

Keywords
icosahedral, quasicrystal, solution growth, high-energy diffraction
Citation
DOI
Collections