Synthesis and characterization of n=5, 6 members of the La4Srn−4TinO3n+2 series with layered structure based upon perovskite |
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Authors: | Jesús Canales-Vázquez Wuzong Zhou |
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Institution: | School of Chemistry, University of St. Andrews, The Purdie Building, St. Andrews, Fife, Scotland KY16 9 ST, UK |
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Abstract: | Layered compounds have been synthesized and structurally characterized for the n=5 and 6 members of the perovskite-related family La4Srn−4TinO3n+2 by combining X-ray diffraction and transmission electron microscopy. Their structure can be regarded as comprising (La,Sr)5Ti5O17] and (La,Sr)6Ti6O20] perovskite blocks joined by crystallographic shears along the a-axis, with consecutive blocks shifted by 1/2 100]p. The n=5 member is similar to the previously reported n=5 member of other AnBnO3n+2-related series. The n=6 member, which has only been briefly reported in other systems previously, is also a well-behaved member of this AnBnO3n+2 series. |
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Keywords: | AnBnO3n+2 layered perovskites HRTEM XRD Structural characterization |
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