title: Infrared-induced variation of the magnetic properties of a magnetoplasmonic film with a 3D sub-micron periodic triangular roof-type antireflection structure.
abstract: A carbon-matrix nickel composite magnetoplasmonic film with a 3D sub-micron periodic triangular roof-type antireflection structure (SPTAS) was fabricated via a simple and promising method that combines chemosynthesis with biomimetic techniques. The Troides helena (Linnaeus) forewing (T_FW) was chosen as the biomimetic template. The carbon-matrix Ni wing fabricated via electroless Ni deposition for 6 h (CNMF_6h) exhibits enhanced infrared absorption. Over a wavelength range (888-2500 nm), the enhancement of the infrared absorption of CNMF_6h is up to 1.85 times compared with the T_FW. Furthermore, infrared excitation induces a photothermal effect that results in variation in the magnetic properties of the carbon-matrix Ni wing. The magnetic properties were also confirmed using atomic force microscopy (AFM) and magnetic force microscopy (MFM). The good correlation between the AFM and MFM images demonstrates that the surface of the SPTAS of CNMF_6h exhibits strong magnetic properties. The infrared induced photothermal effect that results in magnetic variation is promising for use in the design of novel magnetoplasmonic films with potential applications in infrared information recording and heat-assisted magnetic recording.
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.
authors.forename: Junlong
authors.initials: J
authors.lastname: Tian
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.
authors.forename: Wang
authors.initials: W
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.
authors.forename: Yiqiao
authors.initials: Y
authors.lastname: Huang
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.
authors.forename: Qinglei
authors.initials: Q
authors.lastname: Liu
authors.affiliation: Department of Prosthodontics, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.
authors.forename: Yuhua
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Jushi Fiberglass Research Institute, Zhejiang Key Laboratory for Fiberglass Research, Jushi Group Co., Ltd., Zhejiang, 314500, P. R. China.
authors.forename: Zhijian
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.
authors.forename: Di
authors.initials: D
authors.lastname: Zhang