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dc.contributor.authorZhang, Jinxingen_US
dc.contributor.authorKe, Xiaoxingen_US
dc.contributor.authorGou, Gaoyangen_US
dc.contributor.authorSeidel, Janen_US
dc.contributor.authorXiang, Binen_US
dc.contributor.authorYu, Puen_US
dc.contributor.authorLiang, Wen-Ien_US
dc.contributor.authorMinor, Andrew M.en_US
dc.contributor.authorChu, Ying-haoen_US
dc.contributor.authorVan Tendeloo, Gustaafen_US
dc.contributor.authorRen, Xiaobingen_US
dc.contributor.authorRamesh, Ramamoorthyen_US
dc.date.accessioned2014-12-08T15:33:36Z-
dc.date.available2014-12-08T15:33:36Z-
dc.date.issued2013-11-01en_US
dc.identifier.issn2041-1723en_US
dc.identifier.urihttp://dx.doi.org/10.1038/ncomms3768en_US
dc.identifier.urihttp://hdl.handle.net/11536/23279-
dc.description.abstractStimulus-responsive shape-memory materials have attracted tremendous research interests recently, with much effort focused on improving their mechanical actuation. Driven by the needs of nanoelectromechanical devices, materials with large mechanical strain, particularly at nanoscale level, are therefore desired. Here we report on the discovery of a large shape-memory effect in bismuth ferrite at the nanoscale. A maximum strain of up to similar to 14% and a large volumetric work density of similar to 600 +/- 90 J cm(-3) can be achieved in association with a martensitic-like phase transformation. With a single step, control of the phase transformation by thermal activation or electric field has been reversibly achieved without the assistance of external recovery stress. Although aspects such as hysteresis, microcracking and so on have to be taken into consideration for real devices, the large shape-memory effect in this oxide surpasses most alloys and, therefore, demonstrates itself as an extraordinary material for potential use in state-of-art nanosystems.en_US
dc.language.isoen_USen_US
dc.titleA nanoscale shape memory oxideen_US
dc.typeArticleen_US
dc.identifier.doi10.1038/ncomms3768en_US
dc.identifier.journalNATURE COMMUNICATIONSen_US
dc.citation.volume4en_US
dc.citation.issueen_US
dc.citation.epageen_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.identifier.wosnumberWOS:000328023900006-
dc.citation.woscount12-
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