HIGHLY SENSITIVE SPIN VALVE HEADS USING A SELF-ALIGNED DEMAG-FIELD BALANCE ELEMENT

摘要

A magnetic read head (30) for use in a mag-netic data storage and retrieval system has a firstcurrent contact (40), a second current contact (42),a magnetoresistive read sensor (34), and a demag-netization field balance element (50). Positioned be-tween the first and second current contacts (40, 42)are both the magnetoresistive read sensor (34) andthe demagnetization field balance element (50). Thedemagnetization field balance element (50) is bothelectrically isolated from and magnetically coupledto the magnetoresistive read sensor (34).