Title :
Effect of CoPtCr/Cr on the magnetic properties of Permalloy
Author :
Lederman, Marcos
Author_Institution :
READ-RITE Corp., Fremont, CA, USA
fDate :
3/1/1998 12:00:00 AM
Abstract :
The effect of a hard bias material, CoCrPt, on the magnetic properties of Permalloy has been studied as a function of spacer layer thickness. In particular, a large increase in the coercivity without reduction in squareness of NiFe is observed. This increase may have relevant implications in the design of magnetoresistive heads. The results are explained qualitatively using a Random Field approach in the Imry-Ma
Keywords :
Permalloy; chromium; chromium alloys; cobalt alloys; coercive force; ferromagnetic materials; magnetic heads; magnetic hysteresis; magnetoresistive devices; platinum alloys; CoPtCr-Cr; CoPtCr/Cr; NiFe; Permalloy; coercivity; hard bias material; magnetic properties; magnetoresistive head; random field; spacer layer; squareness; Annealing; Chromium; Coercive force; Magnetic heads; Magnetic hysteresis; Magnetic materials; Magnetic properties; Magnetoresistance; Magnetostriction; Permanent magnets;
Journal_Title :
Magnetics, IEEE Transactions on
