Understanding the depolarization phenomena in (1-) NaBiTiO. () BaCaTiZrOsolid solutions usingtemperature dependent Raman spectroscopy.

A decrease in depolarization temperature () from 456 K to 352 K was observed with an increase in BCZT substitution in the NBT for the (1-) NaBiTiO. () BaCaTiZrOsolid solutions. A transition towards a higher ergodic state was elucidated with an increase in BCZT content that helped to reduce the free energy barrier, hence lesser thermal energy was required to depolarize the modified systems.

Investigations on Crystalline Perfection, Raman Spectra and Optical Characteristics of Transition Metal (Ru) Co-Doped Mg:LiNbO Single Crystals.

Congruent lithium niobate single crystals with a Ru:Mg co-dopant have been successfully grown using the Czochralski technique from the melt containing 0.02 mol % Ru with Mg of two varied concentrations (4.0 and 6.

Structural, optical and electronic properties of Ni Co O in the complete composition range.

Crystallographic and electronic structures of phase pure ternary solid solutions of Ni Co O ( = 0 to 1) have been studied using XRD, EXAFS and XAS measurements. The lattice parameter of the cubic rock-salt (RS) Ni Co O solid solutions increases linearly with increasing Co content and follows Vegard's law, in the complete composition range. A linear increase in the bond lengths (Ni/Co-O, Ni-Ni and Ni-Co) with "", closely following the bond lengths determined from virtual crystal approximation (VCA), is observed, which implies that there is only a minimal local distortion of the lattice in the mixed crystal.

Effect of Yb doping on the refractive index and thermo-optic coefficient of YVO single crystals.

Single crystals of YVO with different doping concentrations of Yb (1.5, 3.0, 8.

Temperature-dependent index of refraction of monoclinic Ga2O3 single crystal.

We present temperature-dependent refractive index along crystallographic b[010] and a direction perpendicular to (100)-plane for monoclinic phase (β) Ga(2)O(3) single crystal grown by the optical floating zone technique. The experimental results are consistent with the theoretical result of Litimein et al.1.