Magnetic head having self-pinned CPP sensor with multilayer...

Details Magnetic head having self-pinned CPP sensor with multilayer... Magnetic head having self-pinned CPP sensor with multilayer...

2007-09-11

2007-09-11

Nguyen, Hoa T. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

10777538

ABSTRACT:
A magnetic head has a read sensor including a free layer, a spacer layer and a number of self-pinned layers. These self-pinned layers include interleaved layers of ferromagnetic material and non-magnetic metal. The self-pinned layers are pinned through magnetostrictive anisotropy, and preferably have a net magnetic moment which is approximately zero.

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“Angular Sensor Using TMR Junctions with an AAF (Artificial antiferromagnet) Reference Electrode and IMproved Thermal Stability”, Manfred Ruehrig, Robert Seidel, Ludwig Baer, Michael Vieth, Guenter Rupp, Joachim Wecker, Intermag Europe 2002, AV Magnetoelectronic Devices and Spin Torque.
“Thermal Stability of Pinned Layer in PtMn-Based Synthetic Spin-Valve”,, Nagai, H.; Ueno, R.; Hikami, F.; Sawasaki, T.; Tanoue, S., IEEE Transactions on Magnetics, vol. 35, Issue: 5, Sep. 1999 pp. 2964-2966.

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