MAGNETORESISTIVE ELEMENT, AND MAGNETIC RANDOM ACCESS MEMORY
First Claim
1. A magnetoresistive element, comprising:
- a first magnetization free layer;
a second magnetization free layer;
a non-magnetic layer disposed adjacent to the second magnetization free layer; and
a first magnetization fixed layer disposed adjacent to said second magnetization free layer on an opposite side of said second magnetization free layer,wherein said first magnetization free layer is formed of ferromagnetic material and has a magnetic anisotropy in a thickness direction,wherein said second magnetization free layer and said first magnetization fixed layer are formed of ferromagnetic material and have a magnetic anisotropy in an in-plane direction,wherein said first magnetization free layer includes;
a first magnetization fixed region having a fixed magnetization;
a second magnetization fixed region having a fixed magnetization; and
a magnetization free region connected to said first and second magnetization fixed regions and having a reversible magnetization,wherein said magnetization free region and said second magnetization free layer are magnetically coupled, andwherein a center of mass of said magnetization free region and a center of mass of said second magnetization free layer are displaced in a particular in-plane direction.
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Abstract
A magnetoresistive element is provided with a first magnetization free layer; a second magnetization free layer; a non-magnetic layer disposed adjacent to the second magnetization free layer; and a first magnetization fixed layer disposed adjacent to the second magnetization free layer on an opposite side of the second magnetization free layer. The first magnetization free layer is formed of ferromagnetic material and has a magnetic anisotropy in a thickness direction. On the other hand, the second magnetization free layer and the first magnetization fixed layer are formed of ferromagnetic material and have a magnetic anisotropy in an in-plane direction. The first magnetization free layer includes: a first magnetization fixed region having a fixed magnetization; a second magnetization fixed region having a fixed magnetization; and a magnetization free region connected to the first and second magnetization fixed regions and having a reversible magnetization. The magnetization free region and the second magnetization free layer are magnetically coupled. In addition, the center of mass of the magnetization free region and the center of mass of the second magnetization free layer are displaced in a particular in-plane direction.
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Citations
14 Claims
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1. A magnetoresistive element, comprising:
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a first magnetization free layer; a second magnetization free layer; a non-magnetic layer disposed adjacent to the second magnetization free layer; and a first magnetization fixed layer disposed adjacent to said second magnetization free layer on an opposite side of said second magnetization free layer, wherein said first magnetization free layer is formed of ferromagnetic material and has a magnetic anisotropy in a thickness direction, wherein said second magnetization free layer and said first magnetization fixed layer are formed of ferromagnetic material and have a magnetic anisotropy in an in-plane direction, wherein said first magnetization free layer includes; a first magnetization fixed region having a fixed magnetization; a second magnetization fixed region having a fixed magnetization; and a magnetization free region connected to said first and second magnetization fixed regions and having a reversible magnetization, wherein said magnetization free region and said second magnetization free layer are magnetically coupled, and wherein a center of mass of said magnetization free region and a center of mass of said second magnetization free layer are displaced in a particular in-plane direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification