title: Magnetic mesocrystal-assisted magnetoresistance in manganite.
abstract: Mesocrystal, a new class of crystals as compared to conventional and well-known single crystals and polycrystalline systems, has captured significant attention in the past decade. Recent studies have been focused on the advance of synthesis mechanisms as well as the potential on device applications. In order to create further opportunities upon functional mesocrystals, we fabricated a self-assembled nanocomposite composed of magnetic CoFe2O4 mesocrystal in Sr-doped manganites. This combination exhibits intriguing structural and magnetic tunabilities. Furthermore, the antiferromagnetic coupling of the mesocrystal and matrix has induced an additional magnetic perturbation to spin-polarized electrons, resulting in a significantly enhanced magnetoresistance in the nanocomposite. Our work demonstrates a new thought toward the enhancement of intrinsic functionalities assisted by mesocrystals and advanced design of novel mesocrystal-embedded nanocomposites.
authors.affiliation: Department of Materials Science and Engineering, National Chiao Tung University , Hsinchu 300, Taiwan.
authors.forename: Jan-Chi
authors.initials: JC
authors.lastname: Yang
authors.forename: Qing
authors.initials: Q
authors.lastname: He
authors.forename: Yuan-Min
authors.initials: YM
authors.lastname: Zhu
authors.forename: Jheng-Cyuan
authors.initials: JC
authors.lastname: Lin
authors.forename: Heng-Jui
authors.initials: HJ
authors.lastname: Liu
authors.forename: Ying-Hui
authors.initials: YH
authors.lastname: Hsieh
authors.forename: Ping-Chun
authors.initials: PC
authors.lastname: Wu
authors.forename: Yen-Lin
authors.initials: YL
authors.lastname: Chen
authors.forename: Shang-Fan
authors.initials: SF
authors.lastname: Lee
authors.forename: Yi-Ying
authors.initials: YY
authors.lastname: Chin
authors.forename: Hong-Ji
authors.initials: HJ
authors.lastname: Lin
authors.forename: Chien-Te
authors.initials: CT
authors.lastname: Chen
authors.forename: Qian
authors.initials: Q
authors.lastname: Zhan
authors.forename: Elke
authors.initials: E
authors.lastname: Arenholz
authors.forename: Ying-Hao
authors.initials: YH
authors.lastname: Chu
keywords: colossal magnetoresistance; complex oxide; mesocrystal; nanocomposite; nanocrystal; self-assembled