论文标题
FEPD薄膜的血浆诱导的磁性图案，没有交换偏见
Plasma-induced magnetic patterning of FePd thin films without and with exchange bias
论文作者
论文摘要
我们通过通过血浆处理对其表面进行构图，证明了连续FEPD薄膜中磁性域结构的控制。 FEPD合金薄膜在Al $ _2 $ O $ _3 $ _3 $（0001）的环境暴露后，在表面形成的氧化层层被E $ _2 $或AR-PLASMA处理。然后，通过磁化膜中的磁性域壁的显微镜钉在磁膜壁上，通过磁化kerr效应显微镜观察到，磁场需要逆转质量处理区域的磁化，而磁场比未经处理的区域大。在系统中也观察到单轴各向异性与交换偏见之间的有趣竞争。这项研究表明，通过血浆处理的膜表面对薄膜中磁性结构进行复杂的工程的一种简单有效的方法，因此在开发未来的数据存储和Spintronic设备方面具有潜在的应用。
We demonstrate control of magnetic domain structures in continuous FePd thin films by patterning their surfaces with plasma treatment. The Fe-oxide layer formed on the surface upon ambient exposure of the FePd alloy thin film grown on an Al$_2$O$_3$(0001) substrate was patterned into microstructures by e-beam lithography followed by O$_2$- or Ar-plasma treatment. Microscopic pinning of magnetic domain walls in the thin films is then observed by magneto-optic Kerr effect microscopy, with the magnetic field needed to reverse the magnetization of the plasma-treated areas being larger than that for the untreated areas. An intriguing competition between the uniaxial anisotropy and the exchange bias is also observed in the system. This study demonstrates that patterning of the film surface with plasma treatment can be an easy and efficient method for sophisticated engineering of magnetic structures in thin films, and therefore has potential application in developing future data-storage and spintronic devices.
