Growth of strontium barium niobate: the liquidus–solidus phase diagram

Compositional dependence of optical and vibrational properties of strontium barium niobate (SrxBa1–xNb2O6)

“…For our investigations we used single crystals of SBN which were grown by the Czochralski technique using resistance heating; the growth procedure is described in detail by Ulex et al [1]. Pyroelectric measurements [17] have shown that SBN is ferroelectric at room temperature throughout the whole composition range in which SBN crystals can be grown.…”

“…. Here the x-values refer to the crystal composition, determined by X-ray fluorescence [1], while Venturini et al [8] have used the melt composition. The c-axis is aligned perpendicular to two parallel surfaces using a {100} growth face as reference.…”

“…A critical examination of the Sellmeier parameters in Table 1 reveals that the main contribution to the composition dependence of the extraordinary index is constant, imposed by parameter 1 A . Such a constant contribution can be introduced by the static polarization of the material via the quadratic electrooptic effect.…”

“…Recently the liquidus-solidus phase diagram of strontium barium niobate, Sr x Ba 1-x Nb 2 O 6 has been determined over the whole existence region of the tetragonal phase [1]. This allows to tailor the wellknown outstanding properties more precisely.…”

Crystal Structure of the High Temperature Phase of Strontium Barium Niobate

“…SBN crystallizes in a wide solid solution range (0.26 < x < 0.87) [1] in the tetragonal symmetry (space group P 4bm). In ferroelectric phase, SBN has the 4mm point group symmetry, which transforms to centrosymmetric 4/mmm point group above T C .…”