| 摘要 |
A magnetic storage device with a significant reduction in power consumption. The magnetic storage device includes: a yoke which is arranged to cover part of a line extending in an arbitrary direction; and a magneto-resistive element which is arranged in contact with the yoke, thereby forming a closed magnetic circuit. The magneto-resistive element is capable of writing information with a field emanating from the yoke. The magnetic storage device satisfies Iw<=a.R, where R is the magnetoresistance of the yoke, Iw is the write current necessary for the line, and a (mA.H)=6E-11.
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