Information card for entry 2300614

Structure parameters

• Formula: Ba2 Co Ge2 O7
• Calculated formula: Ba2 Co Ge2 O7
• Title of publication: Origin of forbidden reflections in multiferroic Ba~2~CoGe~2~O~7~ by neutron diffraction: symmetry lowering or Renninger effect?
• Authors of publication: Sazonov, Andrew; Meven, Martin; Roth, Georg; Georgii, Robert; Kézsmárki, István; Kocsis, Vilmos; Tokunaga, Yusuke; Taguchi, Yasujiro; Tokura, Yoshinori; Hutanu, Vladimir
• Journal of publication: Journal of Applied Crystallography
• Year of publication: 2016
• Journal volume: 49
• Journal issue: 2
• Pages of publication: 556 - 560
• a: 8.392 ± 0.001 Å
• b: 8.392 ± 0.001 Å
• c: 5.561 ± 0.001 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 391.64 ± 0.1 ų
• Cell temperature: 300 K
• Ambient diffraction temperature: 300 K
• Number of distinct elements: 4
• Space group number: 113
• Hermann-Mauguin space group symbol: P -4 21 m
• Hall space group symbol: P -4 2ab
• Residual factor for all reflections: 0.0164
• Residual factor for significantly intense reflections: 0.0164
• Weighted residual factors for significantly intense reflections: 0.042
• Weighted residual factors for all reflections included in the refinement: 0.042
• Goodness-of-fit parameter for significantly intense reflections: 1.68
• Goodness-of-fit parameter for all reflections included in the refinement: 1.68
• Diffraction radiation probe: neutron
• Diffraction radiation wavelength: 0.793 Å
• Diffraction radiation type: Neutron
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes