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Giant linear strain gradient with extremely low elastic energy in a perovskite nanostructure array
Tang, Y. L.; Zhu, Y. L.; Liu, Y.; Wang, Y. J.; Ma, X. L.; Ma, XL (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Wenhua Rd 72, Shenyang 110016, Peoples R China.; Ma, XL (reprint author), Lanzhou Univ Technol, Sch Mat Sci & Engn, Langongping Rd 287, Lanzhou 730050, Peoples R China.
2017-06-30
发表期刊NATURE COMMUNICATIONS
ISSN2041-1723
卷号8页码:-
摘要Although elastic strains, particularly inhomogeneous strains, are able to tune, enhance or create novel properties of some nanoscale functional materials, potential devices dominated by inhomogeneous strains have not been achieved so far. Here we report a fabrication of inhomogeneous strains with a linear gradient as giant as 106 per metre, featuring an extremely lower elastic energy cost compared with a uniformly strained state. The present strain gradient, resulting from the disclinations in the BiFeO3 nanostructures array grown on LaAlO3 substrates via a high deposition flux, induces a polarization of several microcoulomb per square centimetre. It leads to a large built-in electric field of several megavoltage per metre, and gives rise to a large enhancement of solar absorption. Our results indicate that it is possible to build up large-scale strain-dominated nanostructures with exotic properties, which in turn could be useful in the development of novel devices for electromechanical and photoelectric applications.; Although elastic strains, particularly inhomogeneous strains, are able to tune, enhance or create novel properties of some nanoscale functional materials, potential devices dominated by inhomogeneous strains have not been achieved so far. Here we report a fabrication of inhomogeneous strains with a linear gradient as giant as 106 per metre, featuring an extremely lower elastic energy cost compared with a uniformly strained state. The present strain gradient, resulting from the disclinations in the BiFeO3 nanostructures array grown on LaAlO3 substrates via a high deposition flux, induces a polarization of several microcoulomb per square centimetre. It leads to a large built-in electric field of several megavoltage per metre, and gives rise to a large enhancement of solar absorption. Our results indicate that it is possible to build up large-scale strain-dominated nanostructures with exotic properties, which in turn could be useful in the development of novel devices for electromechanical and photoelectric applications.
部门归属[tang, y. l. ; zhu, y. l. ; liu, y. ; wang, y. j. ; ma, x. l.] chinese acad sci, shenyang natl lab mat sci, inst met res, wenhua rd 72, shenyang 110016, peoples r china ; [ma, x. l.] lanzhou univ technol, sch mat sci & engn, langongping rd 287, lanzhou 730050, peoples r china
学科领域Multidisciplinary Sciences
资助者National Natural Science Foundation of China [51231007, 51571197, 51501194, 51671194, 51521091]; National Basic Research Program of China [2014CB921002]; Key Research Program of Frontier Sciences CAS [QYZDJ-SSW-JSC010]
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/321006/78074
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, Wenhua Rd 72, Shenyang 110016, Peoples R China.; Ma, XL (reprint author), Lanzhou Univ Technol, Sch Mat Sci & Engn, Langongping Rd 287, Lanzhou 730050, Peoples R China.
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GB/T 7714
Tang, Y. L.,Zhu, Y. L.,Liu, Y.,et al. Giant linear strain gradient with extremely low elastic energy in a perovskite nanostructure array[J]. NATURE COMMUNICATIONS,2017,8:-.
APA Tang, Y. L..,Zhu, Y. L..,Liu, Y..,Wang, Y. J..,Ma, X. L..,...&Ma, XL .(2017).Giant linear strain gradient with extremely low elastic energy in a perovskite nanostructure array.NATURE COMMUNICATIONS,8,-.
MLA Tang, Y. L.,et al."Giant linear strain gradient with extremely low elastic energy in a perovskite nanostructure array".NATURE COMMUNICATIONS 8(2017):-.
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