Abstract
Xray absorption spectroscopy was used to probe the shortrange structure in lanthanumdoped lead titanate ceramics (Pb1-xLaxTiO3) for x ranging from 0.0 to 0.30. A comparison of the XANES spectra and the x-ray diffraction (XRD) results indicates that the local structure around Ti atoms had a different compositional dependence. According to the XANES data, even for the sample containing 30% of lanthanum, for which the XRD analysis indicated the existence of a cubic structure, a local distortion around Ti atoms persisted. The intensity of the pre-edge feature of the PLT30 sample decreased by a factor of only two when compared with the lanthanum-free sample.
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