Journal or Book Title
Chemistry of Materials
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.
American Chemical Society
Choe, Wonyoung; Miller, Gordon J.; Meyers, John; Chumbley, L. Scott; and Pecharsky, Vitalij K., "“Nanoscale Zippers” in the Crystalline Solid. Structural Variations in the Giant Magnetocaloric Material Gd5Si1.5Ge2.5" (2003). Materials Science and Engineering Publications. 138.