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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Increased ultra high frequency magnetic susceptibility in nanopatterned nanolayers with strong exchange coupling
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Increased ultra high frequency magnetic susceptibility in nanopatterned nanolayers with strong exchange coupling

机译:具有强交换耦合的纳米图案纳米层中超高频磁化率的提高

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摘要

In this work, we report the magnetic properties of a set of magnetic multilayers whose particular nanostructure allows control of their in-plane, uniaxial magnetic anisotropy value and consequently the magnetic susceptibility measured at ultra high frequencies. Particularly, two sets of samples with the compositions ((Co15 nm-54 degrees) (Cox nm-0 degrees) (Ta6 nm-54 degrees))(n) and ((Fe10 nm-54 degrees) (Fex nm-0 degrees) (Ta6 nm-54 degrees))(n) where n is the number of trilayers. In every sample, the obliquely and normally deposited ferromagnetic layers were strongly exchange-coupled. Consequently, the value of the uniaxial in-plane magnetic anisotropy could be controlled by changing the thickness of the normally deposited layer (x). Subsequently, the magnetic susceptibility of the samples could be tailored. Thus, the ferromagnetic resonance frequency value may be controlled and increased to up to 6.3 GHz for the samples with larger magnetic anisotropy values.
机译:在这项工作中,我们报告了一组磁性多层的磁性,这些磁性多层的特定纳米结构可以控制其面内单轴磁各向异性值,从而可以控制在超高频下测得的磁化率。特别是,两组样品的成分为((Co15 nm-54度)(Cox nm-0度)(Ta6 nm-54度))(n)和((Fe10 nm-54度)(Fex nm-0度) )(Ta6 nm-54度))(n)其中n是三层的数目。在每个样品中,倾斜的和正常沉积的铁磁层都进行了强交换耦合。因此,可以通过改变通常沉积的层(x)的厚度来控制单轴面内磁各向异性的值。随后,可以调整样品的磁化率。因此,对于具有较大磁各向异性值的样品,可以控制铁磁共振频率值并将其增加到高达6.3 GHz。

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