Besides the magnetic tapes, magnetic disks, there are other recording devices, such as magnetic cards, magnetic ink record account books, and magnetic recording for money. It has huge demands for magnetic information storage and readout's sensor. Currently, the inductive head, a thin film magnetic head, magnetoresistive head, and an amorphous head are widely used. With the increase in recording density, such as a high byte to 100G, it will request the magnetic head with higher sensitivity and spatial resolution. The giant magnetoresistive heads based on Multilayer metal film, the amorphous alloy head made of amorphous alloy and giant magneto-impedance heads. These three type magnetic heads are entering fierce competition.

Tags: neodymium magnets magnetic disks, magnetic cards Smco magnets