X-ray resonant magnetic scattering study of magnetization reversals in a nanoscale spin-valve array

Dong Ryeol Lee; John W. Freeland; Yongseong Choi; George Srajer; Vitali Metlushko; Bojan Ilic

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X-ray resonant magnetic scattering study of magnetization reversals in a nanoscale spin-valve array

机译：纳米自旋阀阵列中磁化反转的X射线共振磁散射研究

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We present an x-ray resonant magnetic scattering study that uses the periodicity of a patterned array of trilayer (Co/Cu/NiFe) elements to determine not only layer-dependent magnetic hysteresis, but, more importantly, to extract the magnetization reversal in different sections of the picture-frame-shaped structure. Spatially resolved and layer-resolved magnetization measurements have revealed that magnetic switching mechanism is very distinct in different regions of the structure and results from a balancing of the shape anisotropy and strong interlayer dipolar coupling. These results demonstrate how spatially averaged measurements are not sufficient to resolve the nature of the reversal mechanism within the structure.

机译：我们提出了一种X射线共振磁散射研究，该研究使用三层（Co / Cu / NiFe）元素的图案阵列的周期性来确定不仅取决于层的磁滞，而且更重要的是，提取不同方向的磁化反转框形结构的各个部分。空间分辨和层分辨磁化测量表明，磁开关机制在结构的不同区域非常不同，并且是形状各向异性和强层间偶极耦合的平衡所致。这些结果表明，空间平均测量结果不足以解决结构内反转机制的本质。

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来源
《Physical review. B, Condensed Matter And Materials Physics》 |2007年第14期|p.144425.1-144425.5|共5页
作者
Dong Ryeol Lee; John W. Freeland; Yongseong Choi; George Srajer; Vitali Metlushko; Bojan Ilic;
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作者单位

Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 790-784, Korea;

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原文格式 PDF
正文语种 eng
中图分类固体物理学;
关键词
magnetization reversal mechanisms; magnetic properties of nanostructures; X-ray diffraction and scattering;

机译：磁化反转机理;纳米结构的磁性;X射线衍射和散射;

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3. Magnetization curves of an Fe/Gd multilayer film calculated from Gd magnetization depth profiles determined by resonant x-ray magnetic scattering [J] . Hosoito N., Hashizume H., Ishimatsu N. Journal of Physics. Condensed Matter . 2002,第21期

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X-ray resonant magnetic scattering study of magnetization reversals in a nanoscale spin-valve array

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