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Structural, FT-IR, XRD and Raman Scattering of New Rare-Earth-Titanate Pyrochlore-Type Oxides LnEuTi2O7 (Ln: Gd, Dy). -Single-phase samples of LnEuTi2O7 (Ln: Gd, Dy) are prepared by solid state reaction of stoichiometric mixtures of TiO2, Eu2O3, and Ln2O3 (1. 1000°C, 12 h, 2. 1200°C, 12 h). The expected compositions GdEuTi2O7 and DyEuTi2O7 are confirmed by EDAX and XRD. FT-IR spectra of the obtained compounds also show the absorption bands corresponding to the pyrochlore structure A2B2O7 (space group Fd3m, refined powder XRD) and give information about the distribution of ions between the A and B sites. The evolution of lattice parameters and interatomic distances as a function of lanthanide cation size is discussed. -(GARBOUT*, A.; TAAZAYET-BELGACEM, I. B.; FERID, M.; J. Alloys Compd. 573 (2013) 43-52, http://dx.