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Presentation
Gold’s Structural Versatility within Complex Intermetallics: From Hume-Rothery to Zintl and even Quasicrystals
MRS Proceedings
  • Gordon J. Miller, Iowa State University
  • Srinivasa Thimmaiah, Iowa State University
  • Volodymyr Smetana, Ames Laboratory
  • Andriy Palasyuk, Iowa State University
  • Qisheng Lin, Ames Laboratory
Document Type
Article
Conference
2012 MRS Fall Meeting
Publication Version
Published Version
Publication Date
1-1-2013
DOI
10.1557/opl.2013.45
Conference Title
2012 MRS Fall Meeting
Conference Date
November 25-30, 2012
Geolocation
(42.3600825, -71.05888010000001)
Abstract
Recent exploratory syntheses of polar intermetallic compounds containing gold have established gold’s tremendous ability to stabilize new phases with diverse and fascinating structural motifs. In particular, Au-rich polar intermetallics contain Au atoms condensed into tetrahedra and diamond-like three-dimensional frameworks. In Au-poor intermetallics, on the other hand, Au atoms tend to segregate, which maximizes the number of Au-heteroatom contacts. Lastly, among polar intermetallics with intermediate Au content, complex networks of icosahedra have emerged, including discovery of the first sodium-containing, Bergman-type, icosahedral quasicrystal. Gold’s behavior in this metal-rich chemistry arises from its various atomic properties, which influence the chemical bonding features of gold with its environment in intermetallic compounds. Thus, the structural versatility of gold and the accessibility of various Au fragments within intermetallics are opening new insights toward elucidating relationships among metal-rich clusters and bulk solids.
Comments

This conference proceeding is from MRS Proceedings 1517 (2013): doi:10.1557/opl.2013.45. Posted with permission.

Copyright Owner
Materials Research Society
Language
en
File Format
application/pdf
Citation Information
Gordon J. Miller, Srinivasa Thimmaiah, Volodymyr Smetana, Andriy Palasyuk, et al.. "Gold’s Structural Versatility within Complex Intermetallics: From Hume-Rothery to Zintl and even Quasicrystals" Boston, MAMRS Proceedings Vol. 1517 (2013) p. 1 - 12
Available at: http://works.bepress.com/gordon-miller/47/