Transactions of the Materials Research Society of Japan
Online ISSN : 2188-1650
Print ISSN : 1382-3469
ISSN-L : 1382-3469
Regular Papers
Local Structure Analysis of Lanthanum-Doped Strontium Titanate by Means of X-Ray Fluorescence Holography
Yoshihiro EbisuKouichi HayashiNaohisa HappoShinya HosokawaTōru Ozaki
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2015 Volume 40 Issue 4 Pages 355-358


We carried out X-ray fluorescence holography at an undulator beamline of SPring-8 to investigate the local structure around the La atoms in Sr0.95La0.05TiO3 single crystal at 297 K. The weak La 1 radiation was detected separately from the radiations Ti 1, Ti 2 and Ti 1. The La holograms were collected in the inverse mode at seven incident X-ray energies from 7.00 keV to 10.00 keV. By the holograms the clear atomic images of Sr(La) and Ti are reconstructed around the La atom. On the other hand, no images of the O atoms were discriminated from the intensities of artifacts. The atomic image around the La atom demonstrates that the La atoms are substituted for the Sr atoms in the cubic perovskite structure of SrTiO3.

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© 2015 The Materials Research Society of Japan
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