Resonant spin-transfer torque in asymmetric double barrier magnetic tunnel junctions (MTJs)

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• 作者：Reza Daqiq ; ^{rdaqiq@yahoo.com} ; Nader Ghobadi
• 关键词：STT components ; Double-barrier MTJs ; Resonant tunneling effect ; LSMO
• 刊名：Superlattices and Microstructures
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：102
• 期：Complete
• 页码：417-423
• 全文大小：1477 K
• 卷排序：102

文摘

Spin torque (ST) is studied in asymmetric double barrier MTJs using NEGF. There are different electrodes and a middle non-magnetic metal (NM) layer. The results show oscillatory behavior due to quantum well states in the NM layer. The current and in-plane ST vs. bias increases in comparison with symmetric MTJs. The perpendicular ST decreases in comparison with symmetric MTJs.