Ferromagnetic/antiferromagnetic bilayer, including decoupler, for longitudinal bias

• Main Authors: HORNG CHENG T, TONG RU YING, LIAO SIMON, JU KOCHAN, ZHENG YOU FENG
• Format: Patent
• Language: English
• Published: 13.04.2004
• Edition: 7
• Subjects: INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; PHYSICS

As the dimensions of spin valve heads continue to be reduced, a number of difficulties are being encountered. One such is with the longitudinal bias when an external magnetic field can cause reversal of the hard magnet, thereby causing a hysteric response by the head. This coercivity reduction becom...