Laser Processing Research Centre of Mechanical and Civil Engineering University of Manchester Road Kingdom;
Ningbo Institute of Materials Technology and Engineering Academy of Sciences 315201’s Republic of China;
Department of Electrical and Electronics Engineering University of Manchester Road Manchester Kingdom;
National Physical Laboratory Kingdom;
National Graphene Institute University of Manchester Manchester Kingdom;
Department of Materials University of Manchester Road Kingdom;
Department of Physics and Astronomy University of Manchester Manchester Kingdom;
Institute for Functional Intelligent Materials University of Singapore Singapore;
Chongqing 2D Materials Institute NewArea 400714’s Republic of China;
laser direct writing; degrees of crystallization; Fe3O4 nanoparticles; wide bandwidth; low frequency;