Current confined pass layer for magnetic elements utilizing...

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Reexamination Certificate

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C365S171000, C365S173000

Reexamination Certificate

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10665945

ABSTRACT:
A method and system for providing and magnetic element is disclosed. In one aspect, the magnetic element includes at least a pinned layer, a free layer, and a current confined layer residing between the pinned layer and the free layer. The pinned layer is ferromagnetic and has a first magnetization. The current confined layer has at least one channel in an insulating matrix. The channel(s) are conductive and extend through the current confined layer. The free layer is ferromagnetic and has a second magnetization. The pinned layer, the free layer, and the current confined layer are configured to allow the magnetization of the free layer to be switched using spin transfer. The magnetic element may also include other layers, including layers for spin valve(s), spin tunneling junction(s), dual spin valve(s), dual spin tunneling junction(s), and dual spin valve/tunnel structure(s).

REFERENCES:
patent: 6532164 (2003-03-01), Redon et al.
patent: 6560077 (2003-05-01), Fujiwara et al.
patent: 6738237 (2004-05-01), Gill
patent: 6865109 (2005-03-01), Covington
patent: 2002/0105827 (2002-08-01), Redon et al.
patent: 2003/0007398 (2003-01-01), Daughton et al.
patent: 2003/0059588 (2003-03-01), Hannah et al.
patent: 2003/0123200 (2003-07-01), Nagasaka et al.
patent: 2005/0002126 (2005-01-01), Fujiwara et al.
J.F. Albert, et al, “Polarized Current Switching of a CO Thin Film Nanomagnet”, American Institute of Physics, vol. 77, No. 23, Dec. 4, 2000, pp. 3809-3811.
J.A. Katine, et al, “Current-Driven Magnetization Reversal and Spin-Wave Excitations in Co/Cu/Co Pillars”, the American Physical Society, vol. 84, No. 14, Apr. 3, 2000, pp. 3149-3151.
E.G. Myers, et al, “Point-Contact Studies of Current-Controlled Domain Switching in Magnetic Multilayers” Journal of Applied Physics, vol. 87, No. 9, May 1, 2000, pp. 5502-5503.
J.C. Slonczewski, “Theory and Application of Exchange-Driven Switching”, IEEE, Apr. 2000, pp. CE-02.
J.C. Slonczewski, “Current-Driven Excitation of Magnetic Multilayers”, Journal of Magnetism and Magnetic Materials, 1996, pp. 1.1-1.7.
J.C. Slonczewski, “Conductance and Exchange Coupling of Two Ferromagnets Separated by a Tunneling Barrier”, The American Physical Society, vol. 39, No. 10, Apr. 1, 1999, pp. 6995-7002.
J.Z. Sun, “Current-Driven Magnetic Switching in Manganite Trilayer Junctions”, Journal of Magnetism and Magnetic Materials, No. 202, 1999, pp. 157-162.
L. Berger,Emission of spin waves by a magnetic multilayer traversed by a current, Physical Review B, vol. 54, No. 13, Oct. 1996, pp. 9353-9358.

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