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Published on: December 4, 2014
Description of Ba(1 + x)Ni(x)Rh(1 - x)O3 with x = 0.1170 (5) in superspace: modulated composite versus
Andreas Schönleber1, F Javier Zúñiga, J Manuel Perez-Mato
1Departamento de Física de la Materia Condensada, Facultad de Ciencia y Tecnología, Universidad del País Vasco, Apartado 644, 48080 Bilbao, Spain. andreas.schoenleber@uni-bayreuth.de
Abstract:
The structure of the compound Ba(1 + x)Ni(x)Rh(1 - x)O3 [x = 0.1170 (5)] has been analyzed at room temperature within the (3 + 1)-dimensional superspace approach using single-crystal X-ray diffraction data. Two different models are presented, the compound is refined as modulated composite as well as modulated-layer structure. In both models discontinuous atomic domains are applied to describe the structural modulations. While the first approach stresses the pseudo-one-dimensional constitution, the latter highlights the layered character of these structures.
