| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat-confinement optimized magnetic device. <P>SOLUTION: A magnetic device has a magnetic tunnel junction which is a magnetic element writable by using a heat-assist magnetization reversal writing operation, disposed between a first magnetic layer and a second magnetic layer and formed of a tunnel barrier layer, an upper current line connected to the upper end portion of the magnetic tunnel junction and a strap portion which extends in a lateral direction and is connected to the bottom end portion of the magnetic tunnel junction. The second magnetic layer has second magnetization, and the direction of the second magnetization can be adjusted when the magnetic tunnel junction is heated to a high threshold value temperature during writing operation. The magnetic device has a lower heat-insulating layer, the lower heat-insulating layer extends substantially in parallel to the strap portion, and the strap portion is located between the magnetic tunnel junction and the lower heat-insulating layer. The magnetic element can reduce heat loss during writing operation, and thus reduce power consumption. <P>COPYRIGHT: (C)2012,JPO&INPIT |
