| PbTiO_3-CoFe_2O_4磁电材料样品库的同步辐射X射线衍射结构分析 |
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| 作者单位： | 中国科学技术大学国家同步辐射实验室 安徽合肥230029 |
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| 摘 要： | 用高分辨微区同步辐射X射线衍射研究了PbTiO3-CoFe2O4组合材料样品库晶体结构随成分的变化,发现在80%PbTiO3成分附近存在着一个由外延应力引起的狭窄立方相区.分析表明,正是此相区的存在造成了该区域介电常数、非线性介电常数和磁电系数异常的增大.
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| 关 键 词： | 同步辐射X射线衍射 磁电材料 组合材料学 |
Structure analysis of PbTiO_3-CoFe_2O_4 multiferroics materials library using synchrotron radiation combinatorial high resolution X-ray diffraction technique |
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| GAO Chen,LUO Zhen-lin,BAO Jun,HU Chuan-sheng,PAN Guo-qiang,FAN Rong. Structure analysis of PbTiO_3-CoFe_2O_4 multiferroics materials library using synchrotron radiation combinatorial high resolution X-ray diffraction technique[J]. Journal of University of Science and Technology of China, 2007, 0(Z1) |
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| Authors: | GAO Chen LUO Zhen-lin BAO Jun HU Chuan-sheng PAN Guo-qiang FAN Rong |
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| Abstract: | The composition-structure relationship in combinatorial PbTiO3-CoFe2O4 materials library was analyzed using the synchrotron radiation high resolution micro diffraction technique.A narrow cubic phase caused by the epitaxial stress was identified around 80% PbTiO3.It was this narrow phase that resulted in the anomalous increase in dielectric constant,nonlinear dielectric constant and magnetoelectric coefficient in the composition range. |
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| Keywords: | synchrotron radiation X-ray diffraction multiferroics combinatorial materials science |
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