Investigations of ferroelectric domain structures in the MgO:LiNbO3 fibers by LHPG

Growth and properties of Ru-doped lithium niobate crystal

“…One of the most effective methods for improvement is to add a small amount of dopant into the congruent LiNbO 3 melt composition. A variety of dopants have been used in the past, such as Mg, Zn, Sc, and In (for reducing optical damage) [2][3][4][5], Nd, Er, Yb and Cr (for laser-host applications) [6,7], and Fe, Mn, Rh, Cu and Ce (for high-density holographic data storage) [8][9][10][11]. The material and optical properties of the crystal are also changed by the amount and type of dopant added.…”

Effect of the pulling rate on the quality of cerium-substituted YIG single-crystal fibers by LHPG

“…Based on the Burton-Prim-Slichter [41] analysis, when the solute boundary layer thickness at the melt-solid interface is larger, the experimental segregation coefficient is closer to unity. Because the flow oscillations are stronger at the periphery of the floating zone, the solute boundary layer is thicker in the central part than in the peripheral part [37,42]. Therefore, the cerium concentration would be richer in the central parts of the grown fibers, and CeO 2 inclusions could easily appear at the central parts.…”

Controlling the axial temperature gradient in inductively heated Czochralski systems

“…Magnesium oxide was added in small amounts, 1 mole%, to the stoichiometric melt, to force the formation of striations [8]. The crystal was grown along the c axis, with a pulling rate of 2.0 mm/h and rotation of 10 /min.…”