Efficient Spin Transfer Torque In La2/3sr1/3mno3 Nanostructures
APPLIED PHYSICS LETTERS(2014)
摘要
We carry out low temperature magnetotransport measurements on nanostructured La2/3Sr1/3MnO3 wires to study the interaction between spin-polarized current and magnetization in this half metallic material. We selectively position domain walls by applying external fields. The domain wall resistance is found to be positive, in contrast to conventional 3d metals. The depinning field is reduced when current pulses are injected into the wire. By comparing measurements for both current polarities, we can disentangle heating and spin transfer torque effects. The determined spin transfer torque efficiency is of the order of 4 x 10(-14) Tm-2/A, which is significantly higher than in permalloy. (C) 2014 AIP Publishing LLC.
更多查看译文
关键词
efficient spin transfer torque
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要