THE DEVELOPMENT OF MAGNETIC MATERIALS
DU You\|Wei (National laboratory of Solid State Microstructures and Department of Physics,Nanjing University, Nanjing\ 210093)
Magnetic materials can be divided into two kinds,metal magnetic materials which have ferromagnetic order and non\|metal magnetic materials such as ferrites which have mostly ferrimagnetic order and semiconducting properties.Before the fifties,metal magnetic materials were the most widely used.However,after the 1950's,non\|metal magnetic materials gradually replaced metal magnetic materials except for FeSi alloy which is used in the electric power industry because it has higher saturation magnetization than ferrites.In the nineties,new metal magnetic materials,such as alloys and compounds of 3d\|(4f,4d,5d,5f\:)elements,amorphous magnetic materials and nanostructured magnetic materials surpassed ferrites with their superior characteristics.
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.