Mechanical and magnetocaloric adjustable properties of Fe3O4/PET deformed nanoparticle film  

作　　者：范凤国 段林彤 Fengguo Fan;Lintong Duan(School of Physics and Electrical Information,Shangqiu Normal University,Shangqiu 476000,China)

机构地区：[1]School of Physics and Electrical Information,Shangqiu Normal University,Shangqiu 476000,China

出　　处：《Chinese Physics B》2024年第3期589-595,共7页中国物理B（英文版）

基　　金：Project supported by Scientific Research Funds(Grant No.7001/700199);Henan Provincial Department Scientific Research Project(Grant No.22A430034).

摘　　要：The flexibility of nanoparticle films is a topic of rapidly growing interest in both scientific and engineering researches due to their numerous potential applications in a broad range of wearable electronics and biomedical devices.This article presents the elucidation of the properties of nanoparticle films.Here,a flexible film is fabricated based on polyethylene terephthalate(PET)and magnetic iron oxide at the nanoscale using layer-by-layer technology.The 2D thin flexible film material can be bent at different angles from 0°to 360°.With an increase in elastic deformation angles,the magnetocaloric effect of the film gradually increases in the alternating magnetic field.The test results from a vibrating sample magnetometer and a low-frequency impedance analyzer demonstrate that the film has a good magnetic response and anisotropy.The magnetocaloric effect and magnetic induction effect are controlled by deformation,providing a new idea for the application of elastic films.It combines the flexibility of the nanoparticle PET substrate and,in the future,it may be used for skin adhesion for administration and magnetic stimulation control.

关 键 词：nanoparticle film deformation magnetic properties flexible substrates 

分 类 号：O484.4[理学—固体物理]