CPP reader with phase detection of magnetic resonance for...

Dynamic magnetic information storage or retrieval – General recording or reproducing – Specifics of the amplifier

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C360S324100, C360S324200, C257S421000, C365S158000, C365S171000

Reexamination Certificate

active

07633699

ABSTRACT:
An apparatus includes a magnetically biased multilayer structure having a reference layer and a free layer separated by a spacer layer; a DC current source connected to the multilayer structure; an AC current source connected to the multilayer structure; and a phase detector for measuring a phase difference between an AC current and a voltage across the multilayer structure. A method performed by the apparatus is also provided.

REFERENCES:
patent: 5920446 (1999-07-01), Gill
patent: 6501971 (2002-12-01), Wolf et al.
patent: 6798623 (2004-09-01), Seigler et al.
patent: 7042685 (2006-05-01), Covington
patent: 7471491 (2008-12-01), Sato et al.
patent: 2003/0179514 (2003-09-01), Pinarbasi
patent: 2003/0184918 (2003-10-01), Lin et al.
patent: 2005/0023938 (2005-02-01), Sato et al.
patent: 2006/0222835 (2006-10-01), Kudo et al.
N. Stutzke et al., “Temperature and Field Dependence of High-Frequency Magnetic Noise in Spin Valve Devices”, Applied Physics Letters, vol. 82, No. 1, Jan. 6, 2003, pp. 91-.
S. Yabukami et al., “Phase Detection of High-Frequency Carrier-Type Thin-Film Sensor”, IEEE Trans. on Magnetics, vol. 39, No. 5, Sep. 2003, pp. 3196-3198.
S. I. Kiselev et al., “Microwave Oscillations of a Nanomagnet Driven by a Spin-Polarized Current”, Nature, vol. 425, Sep. 25, 2003, pp. 380-383.
M. Covington et al., “Current-Induced Magnetization Dynamics in Current Perpendicular to the Plane Spin Valves”, Physical Review B, vol. 69, 2004, pp. 184406-1 to 184406-8.
W. H. Rippard et al., “Current-Driven Microwave Dynamics in Magnetic Point Contacts as a Function of Applied Field Angle”, Physical Review B, vol. 70, 2004, pp. 100406-1 to 100406-4.
S. I. Kiselev et al., “Current-Induced Nanomagnet Dynamics for Magnetic Fields Perpendicular to the Sample Plane”, Physical Review Letters, vol. 93, No. 3, Jul. 16, 2004, pp.
B. Razavi, “A Study of Injection Locking and Pulling in Oscillators”, IEEE Journal of Solid-State Circuits, vol. 39, No. 9, Sep. 2004, pp. 1415-1424.
M. R. Pufall et al., “Frequency Modulation of Spin-Transfer Oscillators”, Applied Physics Letters, vol. 86, 2005, pp. 082506-1 to 082506-3.
W. H. Rippard et al., “Injection Locking and Phase Control of Spin Transfer Nano-oscillators”, Physical Review Letters, vol. 95, Aug. 5, 2005, pp. 067203-1 to 067203-4.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

CPP reader with phase detection of magnetic resonance for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with CPP reader with phase detection of magnetic resonance for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CPP reader with phase detection of magnetic resonance for... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4145897

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.