title: Wet chemical synthesis and magnetic properties of single crystal Co nanochains with surface amorphous passivation Co layers.
abstract: : In this study, for the first time, high-yield chain-like one-dimensional (1D) Co nanostructures without any impurity have been produced by means of a solution dispersion approach under permanent-magnet. Size, morphology, component, and structure of the as-made samples have been confirmed by several techniques, and nanochains (NCs) with diameter of approximately 60 nm consisting of single-crystalline Co and amorphous Co-capped layer (about 3 nm) have been materialized. The as-synthesized Co samples do not include any other adulterants. The high-quality NC growth mechanism is proposed to be driven by magnetostatic interaction because NC can be reorganized under a weak magnetic field. Room-temperature-enhanced coercivity of NCs was observed, which is considered to have potential applications in spin filtering, high density magnetic recording, and nanosensors. PACS: 61.46.Df; 75.50; 81.07.Vb; 81.07.
authors.affiliation: Key Lab for Special Functional Materials of Ministry of Education, Henan University, 475004 Kaifeng, People's Republic of China. smzhou@henu.edu.cn.
authors.forename: Shao-Min
authors.initials: SM
authors.lastname: Zhou
authors.forename: Shi-Yun
authors.initials: SY
authors.lastname: Lou
authors.forename: Yong-Qiang
authors.initials: YQ
authors.lastname: Wang
authors.forename: Xi-Liang
authors.initials: XL
authors.lastname: Chen
authors.forename: Li-Sheng
authors.initials: LS
authors.lastname: Liu
authors.forename: Hong-Lei
authors.initials: HL
authors.lastname: Yuan