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首页> 外文期刊>Physics Letters, A >Magnon- and phonon-assisted tunneling in a high-magnetoresistance tunnel junction using Co75Fe25 ferromagnetic electrodes
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Magnon- and phonon-assisted tunneling in a high-magnetoresistance tunnel junction using Co75Fe25 ferromagnetic electrodes

机译:Co75Fe25铁磁电极在高磁阻隧道结中的磁振子和声子辅助隧穿

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摘要

Magnetoelectric properties of the spin-valve-type tunnel junction of Ta(5 nm)/Ni79Fe21(25 nm)/Ir22Mn78(12 nm)/Co75Fe25(4 nm)/Al(0.8 nm)-oxide/Co75Fe25(4 nm)/Ni79Fe21(20 nm)/Ta(5 nm) are investigated both experimentally and theoretically. It is shown that both magnon and phonon excitations contribute to the tunneling process. Moreover, we show that there are two branches of magnon with spin S = 1/2 and 3/2, respectively. The theoretical results are in good agreement with the experimental data. (C) 2003 Elsevier B.V. All rights reserved. [References: 23]
机译:Ta(5nm)/ Ni79Fe21(25nm)/ Ir22Mn78(12nm)/ Co75Fe25(4nm)/ Al(0.8nm)-氧化物/ Co75Fe25(4nm)/的自旋阀型隧道结的磁电性能Ni79Fe21(20 nm)/ Ta(5 nm)的实验和理论研究。结果表明,磁振子和声子激发都对隧穿过程有贡献。此外,我们显示出有两个自旋为S = 1/2和3/2的磁振子分支。理论结果与实验数据吻合良好。 (C)2003 Elsevier B.V.保留所有权利。 [参考:23]

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