Observation of inhomogeneity in congruent LiTaO3 crystal

作     者：X.B.Hu H.D.Jiang H.Liu S.S.Jiang Q.Li J.Y.Wang C.Q.Zhang B.Ten 

作者机构：BeijingSynchrotronRadiationLaboratoryInstituteofHighEnergyBeijing100039210093People’sRepublicofChina NationalLaboratoryofSolidStateMicrostructuresNanjingUniversityNanjing210093People’sRepubli 

出 版 物：《Beijing Synchrotron Radiation Facility》 (北京同步辐射装置（英文版）)

年 卷 期：2001年第2期

页      面：142-144,页

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

主　　题：LiTaO3晶体 钽酸锂晶体 同步辐射形貌术 结构分析 X射线分析 

摘      要：The inhomogeneity in a congrunet LiTaO3 crystal has been observed by transmission synchrotron *** extraordinary regions exist in congruent LiTaO3 crystal and they often show diffraction intensity different from that of ordinary regions in synchrotron *** thermal analysis indiates that the Curie temperature of the extraordinary region is lower than that of ordinary region,and the extraordinary region is really a high defect density *** diffraction contrast of the extraordinary region in synchrotron topographs is explained qualitatively by a calculation at the selected wavelength.2001 Published by Elsevier Science B.V.