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钙钛矿Ca_1-xSr_xTiO₃（0≤x≤1）体系晶体结构的XAFS表征

XAFS Study of Crystal Structures of the Ca_xSr_1-xTiO₃ System（0 ≤x≤ 1）

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【Author】 HU Rong 1,CHEN Shao-xia 2,TANG Dong-sheng3,WU Xiang4,CHU Wang-sheng 5(1.School of Science,Beijing Technology and Business University,Beijing 100048,China; 2.School of Space Science and Physics,Shandong University at Weihai,Weihai 264209,China; 3.Institute of Physics and Information Science,Hunan Normal University,Changsha 410081,China; 4.School of Earth and Space Science,Peking University,Beijing 100871,China; 5.Synchrotron Radiation Laboratory,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China)

【机构】北京工商大学理学院；山东大学威海分校空间科学与物理学院；湖南师范大学物理与信息科学学院；北京大学地球与空间科学学院；中科院高能物理研究所同步辐射实验室；

【摘要】 Ca1-xSrxTiO3(0.0≤x≤1.0)体系在地质领域和材料领域的应用前景吸引了越来越多科学家们的关注.结合XANES(X射线近边吸收谱)定性分析和前三个壳层EXAFS(扩展X射线精细结构谱)定量拟合结果,本文探究了该体系随着Sr元素含量减少的晶体结构变化规律.更多还原

【Abstract】 More attentions have been paid to study the Ca1-xSrxTiO3(0 ≤x≤ 1) systems in geoscience and materials domaint recently.In the present work,the XANES(X-ray absorption near edge structure) and EXAFS(Extended X-ray absorption fine structure) analysis were applied to investigate the tendency of structure changes in this system with decreasing strontium content by fitting the first three shells.更多还原