MAGNETIC MEMORY

To enable a control of a stop position of a magnetic wall with high accuracy.SOLUTION: A magnetic memory according to the present embodiment comprises: a first wiring and a second wiring; an insulator part; a first part electrically connected to the first wiring; a second part electrically connected to the second wiring; and a third part arranged between the first part and the second part; a magnetic member that is extended along a first direction from the first part to the second part and surrounding the insulator part, and in which, in a cross section containing one part of the magnetic member along the first direction and one part of the insulator part, a curvature in the cross section of the first part is smaller than that in the cross section of the third part, and a length in the first direction of the first part is longer than a half value of the length in the first direction of the third part; and a control circuit electrically connected to the first wiring and the second wiring.SELECTED DRAWING: Figure 1 【課題】磁壁の停止位置を精度良く制御することを可能にする。【解決手段】本実施形態による磁気メモリは、第１配線および第２配線と、絶縁体部と、前記第１配線に電気的に接続された第１部分と、前記第２配線に電気的に接続された第２部分と、前記第１部分と前記第２部分との間に配置された第３部分と、を含み、前記第１部分から前記第２部分に向かう第１方向に沿って延びかつ前記絶縁体部を取り囲む磁性部材であって、前記第１方向に沿い前記磁性部材の一部および前記絶縁体部の一部を含む断面において、前記第１部分の断面における曲率が前記第３部分の断面における曲率よりも小さく、前記第１部分の前記第１方向の長さが前記第３部分の前記第１方向の長さの半分の値よりも長い前記磁性部材と、前記第１配線および前記第２配線に電気的に接続された制御回路と、を備えている。【選択図】図１