Magnetic oscillating device based on spin transfer torque...

Details Magnetic oscillating device based on spin transfer torque... Magnetic oscillating device based on spin transfer torque...

2006-03-27

2010-02-23

Davis, David D (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

07667933

ABSTRACT:
A magnetic oscillating device including a first magnetic resonance layer with a first magnetic resonance frequency f1, a second magnetic resonance layer with a second magnetic resonance frequency f2higher than the first magnetic resonance frequency f1, a nonmagnetic layer sandwiched between the first magnetic resonance layer and the second magnetic resonance layer, and a pair of electrodes which supplies a current perpendicularly to film planes of the first and second magnetic resonance layers, in which a difference (f2−f1) between the two magnetic resonance frequencies is larger than half a resonance line width of the first magnetic resonance layer, and a ratio of the two magnetic resonance frequencies f2/f1is 1.6 or less.

REFERENCES:
patent: 5695864 (1997-12-01), Slonczewski
patent: 6975110 (2005-12-01), Kaiju et al.
patent: 2005/0024788 (2005-02-01), Sato et al.
patent: 2005/0219771 (2005-10-01), Sato et al.
patent: 2006/0039089 (2006-02-01), Sato
L. Berger, “Emission of spin waves by a magnetic multilayer traversed by a current” , The American Physical Society, Physical Review B, vol. 54, No. 13, Oct. 1, 1996, pp. 9353-9358.
J.C. Slonczewski, “Current-driven excitation of magnetic multilayers”, Journal of Magnetism and Magnetic Materials, 159, 1996, pp. L1-L7.

Affiliated with

Also associated with

Rating

Magnetic oscillating device based on spin transfer torque... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic oscillating device based on spin transfer torque..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic oscillating device based on spin transfer torque... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4228360