高纵横比PdNi铁磁纳米电极磁化方向的几何控制
Geometrical control of the magnetization direction in high aspect-ratio PdNi ferromagnetic nano-electrodes
摘要：
我们提出了一个研究的电子束蒸发的Pd 0.4 Ni 0.6合金薄膜的扩展膜的不同厚度的铁磁共振测量和各向异性磁阻测量光刻图案的高深宽比的铁磁电极，分别通过。结果表明，磁化的方向强烈地依赖于电极的横向尺寸，从延伸膜的面内磁化转变为电极宽度低于2-3微米的面外磁化，对于100 nm宽的纳米电极达到58度的面外磁化。
英文摘要：
We present a study of electron-beam evaporated Pd0.4Ni0.6 alloy thin films by means of ferromagnetic resonance measurements on extended films of varying thickness and anisotropic magnetoresistance measurements of lithographically patterned high aspect-ratio ferromagnetic electrodes, respectively. The results reveal that the direction of the magnetization strongly depends on the electrode lateral dimensions, transitioning from in-plane magnetization for extended films to out-of-the-plane magnetization for electrode widths below 2-3 microns, reaching 58 degrees off-plane for 100 nm-wide nanoelectrodes.
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