发明名称 |
Magnetic tunnel junctions |
摘要 |
A magnetic tunnel junction includes a conductive first magnetic electrode that includes magnetic recording material. A conductive second magnetic electrode is spaced from the first electrode and includes magnetic reference material. A non-magnetic tunnel insulator material is between the first and second electrodes. The magnetic reference material of the second electrode includes a non-magnetic region comprising elemental iridium. The magnetic reference material includes a magnetic region comprising elemental cobalt or a cobalt-rich alloy between the non-magnetic region and the tunnel insulator material. |
申请公布号 |
US9373779(B1) |
申请公布日期 |
2016.06.21 |
申请号 |
US201414563303 |
申请日期 |
2014.12.08 |
申请人 |
Micron Technology, Inc. |
发明人 |
Chen Wei;Kula Witold;Harms Jonathan D.;Murthy Sunil S. |
分类号 |
H01L43/08;G11B5/39;H01L43/10;H01L43/02;H01L27/115;H01L27/22;B82Y25/00 |
主分类号 |
H01L43/08 |
代理机构 |
Wells St. John, P.S. |
代理人 |
Wells St. John, P.S. |
主权项 |
1. A magnetic tunnel junction, comprising:
a conductive first magnetic electrode comprising magnetic recording material; a conductive second magnetic electrode spaced from the first electrode and comprising magnetic reference material; a non-magnetic tunnel insulator material between the first and second electrodes; and the magnetic reference material of the second electrode including a non-magnetic region comprising elemental iridium, the magnetic reference material including a magnetic region comprising elemental cobalt or a cobalt-rich alloy between the non-magnetic region and the tunnel insulator material, elemental Ta being between the elemental cobalt or cobalt-rich alloy and the tunnel insulator material, an alloy comprising Co, Fe, and B being between the elemental Ta and the tunnel insulator material. |
地址 |
Boise ID US |