Magnetic recording element

Details Magnetic recording element Magnetic recording element

2011-04-26

2011-04-26

Bernatz, Kevin M (Department: 1785)

Stock material or miscellaneous articles

Magnetic recording component or stock

Magnetic head

C428S811500, C360S324110, C360S324120, C365S158000, C365S209000, C324S207210

Reexamination Certificate

active

07931976

ABSTRACT:
A magnetic recording element includes a multilayer having a surface and a pair of electrodes. The multilayer has a first magnetic fixed layer whose magnetization is substantially fixed in a first direction substantially perpendicular to the surface. The multilayer also has a second magnetic fixed layer whose magnetization is substantially fixed in a second direction opposite to the first direction substantially perpendicular to the surface. A third magnetic layer is provided between the first and second magnetic layers. The direction of magnetization of the third ferromagnetic layer is variable. A first intermediate layer is provided between the first and the third magnetic layers. A second intermediate layer is provided between the second and the third magnetic layers. The pair of electrodes is capable of supplying an electric current flowing in a direction substantially perpendicular to the surface to the multilayer. The sectional area taken parallel to the surface at a thickness midpoint of the first magnetic layer is larger than that of the second magnetic layer.

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