Magnetic element and magnetic element array

Details Magnetic element and magnetic element array Magnetic element and magnetic element array

2005-06-14

2005-06-14

Elms, Richard (Department: 2824)

Static information storage and retrieval

Systems using particular element

Magnetic thin film

C365S158000

Reexamination Certificate

active

06906949

ABSTRACT:
A magnetic element comprises a first magnetic reference part (A) including a first ferromagnetic substance pinned in magnetization (M1) substantially in a first direction, a second magnetic reference part (E) including a second ferromagnetic substance pinned in magnetization (M3) substantially in a second direction, and a magnetic recording part (C) provided between the first and second magnetic reference parts. The magnetic recording part includes a third ferromagnetic substance. A spin transfer intermediate part (B) is provided between the first magnetic reference part and the magnetic recording part. An intermediate part (D) is provided between the second magnetic reference part and the magnetic recording part. A magnetization (M2) of the third ferromagnetic substance can be directed in a direction parallel or anti-parallel to the first direction by passing a writing current between the first magnetic reference part and the magnetic recording part. A relative relation between the second direction and the direction of the magnetization of the third ferromagnetic substance can be detected by passing a sense current between the second magnetic reference part and the magnetic recording part.

REFERENCES:
patent: 6111784 (2000-08-01), Nishimura
patent: 6259586 (2001-07-01), Gill
patent: 6730949 (2004-05-01), Kishi et al.
U.S. Appl. No. 10/862,617, filed Jun. 8, 2004, Nagase et al.
U.S. Appl. No. 10/721,549, filed Nov. 26, 2003, Nakamura et al.

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