title: Epitaxial photostriction-magnetostriction coupled self-assembled nanostructures.
abstract: Self-assembled vertical nanostructures take advantage of high interface-to-volume ratio and can be used to design new functionalities by the choice of a proper combination of constituents. However, most of the studies to date have emphasized the functional controllability of the nanostructures using external electric or magnetic fields. In this study, to introduce light (or photons) as an external control parameter in a self-assembled nanostructure system, we have successfully synthesized oxide nanostructures with CoFe(2)O(4) nanopillars embedded in a SrRuO(3) matrix. The combination of photostrictive SrRuO(3) and magnetostrictive CoFe(2)O(4) in the intimately assembled nanostructures leads to a light-induced, ultrafast change in magnetization of the CoFe(2)O(4) nanopillars. Our work demonstrates a novel concept on oxide nanostructure design and opens an alternative pathway for the explorations of diverse functionalities in heteroepitaxial self-assembled oxide nanostructures.
authors: Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan.
authors: Heng-Jui
authors: HJ
authors: Liu
authors: Long-Yi
authors: LY
authors: Chen
authors: Qing
authors: Q
authors: He
authors: Chen-Wei
authors: CW
authors: Liang
authors: Yu-Ze
authors: YZ
authors: Chen
authors: Yung-Shun
authors: YS
authors: Chien
authors: Ying-Hui
authors: YH
authors: Hsieh
authors: Su-Jien
authors: SJ
authors: Lin
authors: Elke
authors: E
authors: Arenholz
authors: Chih-Wei
authors: CW
authors: Luo
authors: Yu-Lun
authors: YL
authors: Chueh
authors: Yi-Chun
authors: YC
authors: Chen
authors: Ying-Hao
authors: YH
authors: Chu
mesh_terms: D003460:Crystallization / Q000379:methods*; D008027:Light; D046911:Macromolecular Substances / Q000737:chemistry; D060526:Magnetic Fields; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000528:radiation effects* / Q000648:ultrastructure; D008968:Molecular Conformation / Q000528:radiation effects; D010087:Oxides / Q000737:chemistry* / Q000528:radiation effects*; D010316:Particle Size; D013499:Surface Properties / Q000528:radiation effects
chemical_list: D046911:Macromolecular Substances; D010087:Oxides