Structural Ordering and Ferromagnetism in La4Mn4O11.
β Scribed by M. L. Ruiz-Gonzalez; R. Cortes-Gil; J. M. Alonso; A. Hernando; M. Vallet-Regi; J. M. Gonzalez-Calbet
- Publisher
- John Wiley and Sons
- Year
- 2007
- Weight
- 13 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0931-7597
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π SIMILAR VOLUMES
The structure of Mn 11 Ta 4 O 21 has been determined and refined using the Rietveld method with combined CuK 1 X-ray and time-of-flight neutron powder data in space group P3 c1 to R F 2 β«Ψβ¬ 1.3% (neutron data) and R F 2 β«Ψβ¬ 7.8% (X-ray data). The unit cell is a β«Ψβ¬ 5.3776(2) A s , c β«Ψβ¬ 34.040(2) A
On the basis of data obtained from the refinement of neutron diffraction experiments, the structural features of \(\mathrm{La}_{8} \mathrm{Ni}_{4} \mathrm{O}_{17}\left(\right.\) " \(\mathrm{LaNiO}_{4.25}\) ") are discussed. It is shown that the additional oxygen atoms in the \(\mathrm{La}_{2} \mathr