反铁磁性
凝聚态物理
铁磁性
交换偏差
霍尔效应
磁性
自旋(空气动力学)
偏压
材料科学
自旋霍尔效应
磁场
领域(数学)
自旋极化
物理
磁化
电压
磁各向异性
电子
量子力学
纯数学
热力学
数学
作者
Hyun‐Joong Kim,Soong‐Geun Je,Dae‐Han Jung,Ki‐Suk Lee,Jung‐Il Hong
摘要
A trilayer structure consisting of ferromagnetic alloy CoFeB/antiferromagnetic IrMn/heavy metal Pt layers was prepared, and the manipulation of its exchange bias effect was achieved without applying an external magnetic field. Spin polarized current, generated by the spin Hall effect of the electrical current through the Pt layer, was shown to be able to control the spin alignment state in the neighboring antiferromagnetic material as well as the corresponding exchange bias effect in the ferromagnet coupled to the antiferromagnet. The results demonstrated stable and reliable switching of the spin structure in antiferromagnets, providing a useful route to all-electrical manipulation of antiferromagnetic states without a need for the bulky global application of the external magnetic field. Therefore, with the results presented in the present work, precise control of magnetism including both ferromagnets and antiferromagnets on submicron to nanometer length scales can be expected.
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