Article ID Journal Published Year Pages File Type
10653250 Solid State Communications 2005 6 Pages PDF
Abstract
Using high-resolution time-of-flight neutron powder diffraction, the crystal structure of BaPbO3 has been reinvestigated at room temperature and 4.2 K. By comparing different structural models, i.e. the orthorhombic Imma and the monoclinic I2/m, it is concluded that the former one describes correctly the structure of BaPbO3, and no Imma→I2/m phase transition exists in the temperature range investigated. The apparent monoclinic distortion is likely due to the existence of twins that introduce the micro strain resulting in anisotropic line broadening of the observed profiles.
Related Topics
Physical Sciences and Engineering Materials Science Materials Science (General)
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