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《Journal of Synthetic Crystals》 1989-03
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Studies of Photorefractive Crystals——Strontium Barium Niobate and Potassium Sodium Strontium Barium Niobate

Song Yongyuan;Sun Daliang(Institute Crystals Materials,Shandong University,Jinan)  
The tungsten bronze type solid solution systems,Sr_(1-x)Ba_xNb_2O_6(SBN)and(K_yNa_(1-y))0.4(Sr-(1-x)Ba_x)0.8 Nb_2O_6(KNSBN),areimportant photorefractive materials with enormous potentialities.The proper-ties of the crystals derived from the two solid solution systems can be controlledby choosing compositions and dopants.This paper summarizes the crystalchemistry,phase eqilibria and growth of SBN and KNSBN crystals.The deve-lopments and applications of these photorefractive crystals are also brieflyreviewed.
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