Patent ID: 8269295

Claim:
A magnetic memory device, comprising: a substrate; a first wire arranged over the substrate, and having a part extending with a first axis; a second wire arranged over the substrate, having a part extending along a second axis as a central axis crossing with the first axis, and crossing with the first wire with a space in the direction of thickness of the substrate provided therebetween; and a recording layer having a planar shape, placed so as to be at least partially interposed between the first wire and the second wire in a region in which the first wire and the second wire cross each other with the space provided therebetween, having an easy-axis, and being changed in magnetization direction by a synthetic magnetic field of a magnetic field by the first wire and a magnetic field by the second wire, wherein the planar shape has a maximum length in a direction of the easy-axis over a primary straight line along the easy-axis, and the planar shape has a width smaller than half of the maximum length along a line in a direction perpendicular to the easy-axis, and on one side of the primary straight line the planar shape has a first part having a first length along the line in the direction perpendicular to the easy-axis, and on another opposing side of the primary straight line the planar shape has a second part along the line in the direction perpendicular to the easy-axis having a second length smaller than the first length, wherein an outer edge of the first part includes only a smooth curve convex outwardly of the outer edge, and wherein a distance between two intersections of the primary straight line and an outer edge of the planar shape is a maximum length.