酸化物単結晶作成時の元素の分配 : イオン半径と偏析係数の関係

抄録

This review discribes the relation between ionic radii and distribution coefficients based on results of investigations of garnet and huntite crystals. A new garnet crystal, Ca_3(Nb, Ga)_<2-x>Ga_30_<12>(CNGG), and a new huntite borate crystl, (Yb, Li)(Al, Mo)_3(B0_3)_4, for laser and self-frequency doubling applications, respectively, have been grown. CNGG single crystals were found to have disordered structure and showed promising properties for high power laser diode pumped laser. (Yb, Li)(Al, Mo)_3(B0_3)_4 crystas were found to have a composition which enables crystal growth from melt and showed superior non-liner optical properties. Common distirbution phemmena during a growth process of oxide crystals were observed. From a view point of these phenomena, one method which seems to beavailabe for searching new materials, was proposed.