Law and Disorder: Special Stacking Units -- Building the Intergrowth Ce₆Co₅Ge₁₆
A new structure type of composition Ce6Co5G16 was grown out of a molten Sn flux. Ce6Co5G16 crystallizes in the orthorhombic space group Cmcm, with highly anisotropic lattice parameters of a = 4.3293(5) Å, b = 55.438(8) Å, and c = 4.3104(4) Å. The resulting single crystals were characterized by X-ray diffraction, and the magnetic and transport properties are presented. The Sn-stabilized structure of Ce6Co5G16 is based on the stacking of disordered Ce cuboctahedra and is an intergrowth of existing structure types including AlB2 , BaNiSn3, and AuCu3 . The stacking of structural subunits has previously been shown to be significant in the fields of superconductivity, quantum materials, and optical materials. Herein, we present the synthesis, characterization, and complex magnetic behavior of Ce6Co5G16 at low temperature, including three distinct magnetic transitions.
J. B. Felder et al., "Law and Disorder: Special Stacking Units -- Building the Intergrowth Ce₆Co₅Ge₁₆," Inorganic Chemistry, vol. 58, no. 9, pp. 6037-6043, American Chemical Society (ACS), May 2019.
The definitive version is available at https://doi.org/10.1021/acs.inorgchem.9b00350
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06 May 2019