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Article
“Nanoscale Zippers” in the Crystalline Solid. Structural Variations in the Giant Magnetocaloric Material Gd5Si1.5Ge2.5
Chemistry of Materials
  • Wonyoung Choe, Iowa State University
  • Gordon J. Miller, Iowa State University
  • John Meyers, Iowa State University
  • L. Scott Chumbley, Iowa State University
  • Vitalij K. Pecharsky
Document Type
Article
Disciplines
Publication Date
3-4-2003
DOI
10.1021/cm020928l
Abstract

Single-crystal X-ray diffraction coupled with TEM and SAD investigations demonstrate that Gd5Si1.5Ge2.5 exists as two distinct structural phases at room temperature:  the orthorhombic Sm5Ge4-type and the monoclinic Gd5Si2Ge2-type. This phenomenon occurs from the “nanoscale zippers” involving (Si, Ge) dimers that form or break bonds between the fundamental building units.

Comments

Reprinted “Nanoscale Zippers” in the Crystalline Solid. Structural Variations in the Giant Magnetocaloric Material Gd5Si1.5Ge2.5 with permission from Chem. Mater., 2003, 15 (7), pp 1413–1419. Copyright 2003 American Chemical Society.

Copyright Owner
American Chemical Society
Language
en
Date Available
2014-09-10
File Format
application/pdf
Citation Information
Wonyoung Choe, Gordon J. Miller, John Meyers, L. Scott Chumbley, et al.. "“Nanoscale Zippers” in the Crystalline Solid. Structural Variations in the Giant Magnetocaloric Material Gd5Si1.5Ge2.5" Chemistry of Materials Vol. 15 Iss. 7 (2003) p. 1413 - 1419
Available at: http://works.bepress.com/gordon-miller/50/