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An effect of crystal tilt on the determination of ions displacements in perovskite oxides under BF/HAADF-STEM imaging mode
Liu, Y.; Zhu, Y. L.; Tang, Y. L.; Ma, X. L.; Ma, XL (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China.
2017-03-01
发表期刊JOURNAL OF MATERIALS RESEARCH
ISSN0884-2914
卷号32期号:5页码:947-956
摘要Effects of crystal tilt on the determination of the relative positions of different ion columns in compounds such as ferroelectric PbTiO3 are of critical importance, because the displacements of Ti and O relative to Pb correlate directly to the spontaneous polarization and ferroelectric properties. Here a study about the effects of small-angle crystal tilt on the relative image spots positions of different ions in PbTiO3 was carried out under high angle angular dark-field (HAADF) and bright-field imaging for aberration corrected Scanning Transmission Electron Microscope. The results indicate that crystal tilt affects the relative positions of Pb, Ti, and O greatly, and the effects are proved to depend highly on crystal tilt angle and PTO thickness. HAADF image simulations on PbTiO3, SrTiO3, and SrRuO3 indicate that the difference in atomic number is a main contributor to the relative image spot position change of different ion columns when crystal tilts.; Effects of crystal tilt on the determination of the relative positions of different ion columns in compounds such as ferroelectric PbTiO3 are of critical importance, because the displacements of Ti and O relative to Pb correlate directly to the spontaneous polarization and ferroelectric properties. Here a study about the effects of small-angle crystal tilt on the relative image spots positions of different ions in PbTiO3 was carried out under high angle angular dark-field (HAADF) and bright-field imaging for aberration corrected Scanning Transmission Electron Microscope. The results indicate that crystal tilt affects the relative positions of Pb, Ti, and O greatly, and the effects are proved to depend highly on crystal tilt angle and PTO thickness. HAADF image simulations on PbTiO3, SrTiO3, and SrRuO3 indicate that the difference in atomic number is a main contributor to the relative image spot position change of different ion columns when crystal tilts.
部门归属[liu, y. ; zhu, y. l. ; tang, y. l. ; ma, x. l.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china
学科领域Materials Science, Multidisciplinary
资助者National Natural Science Foundation of China [51231007, 51571197, 51501194, 51671194, 51521091]; National Basic Research Program of China [2014CB921002]; Chinese Academy of Sciences [QYZDJ-SSW-JSC010]; IMR SYNL-T. S. Ke Research Fellowship and the Youth Innovation Promotion Association CAS [2016177]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78246
专题中国科学院金属研究所
通讯作者Ma, XL (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Liu, Y.,Zhu, Y. L.,Tang, Y. L.,et al. An effect of crystal tilt on the determination of ions displacements in perovskite oxides under BF/HAADF-STEM imaging mode[J]. JOURNAL OF MATERIALS RESEARCH,2017,32(5):947-956.
APA Liu, Y.,Zhu, Y. L.,Tang, Y. L.,Ma, X. L.,&Ma, XL .(2017).An effect of crystal tilt on the determination of ions displacements in perovskite oxides under BF/HAADF-STEM imaging mode.JOURNAL OF MATERIALS RESEARCH,32(5),947-956.
MLA Liu, Y.,et al."An effect of crystal tilt on the determination of ions displacements in perovskite oxides under BF/HAADF-STEM imaging mode".JOURNAL OF MATERIALS RESEARCH 32.5(2017):947-956.
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