Title :
Spin-valve MR heads for tape and disk applications
Author :
ten Berge, P. ; Oliveira, N.J. ; Plaskett, T.S. ; Leal, J.L. ; Boeve, H.J. ; Albuquerque, G. ; Ferreira, J. ; Morais, A.R. ; Sousa, A.T. ; Rodrigues, L. ; Freitas, P.P.
Author_Institution :
INESC, Lisbon, Portugal
fDate :
11/1/1995 12:00:00 AM
Abstract :
Unshielded spin-valve sensors, exchange biased with TbCo (trackwidths from 2 to 80 μm) and with NiO (2 μm trackwidth) have been fabricated, showing a well-linearized and Barkhausen noise free behaviour. The response at low frequency of these TbCo biased sensors and the performance of a TbCo biased head, implemented into a tape drive, is described. The results of shielded TbCo exchange biased sensors are discussed
Keywords :
magnetic heads; magnetic multilayers; magnetic recording noise; magnetoresistive devices; 2 to 80 micron; Barkhausen noise free behaviour; NiO; TbCo; exchange bias; shielded exchange biased sensors; spin-valve MR heads; tape drive; trackwidths; unshielded spin-valve sensors; Corrosion; Drives; Ferrimagnetic materials; Insulation life; Magnetic heads; Magnetic materials; Magnetic sensors; Spin valves; Testing; Thermal resistance;
Journal_Title :
Magnetics, IEEE Transactions on
