薄膜表轴 [111] Co[公式:参见文本]Pt[公式:参见文本]:结构,磁化和旋转极化
N Satchell1, S Gupta1, M Maheshwari1
1School of Physics and Astronomy, University of Leeds, Leeds, LS2 9JT UK.
Scientific reports
|August 1, 2023
概括
我们探索了用于自旋电子的-合金,在[公式:参见文本]结构中发现垂直磁性异构. 这为先进的电子设备提供了复杂的多层薄膜的替代方案.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 这就是Spintronics.
背景情况:
- 垂直磁性异构性 (PMA) 对旋转电子和超导旋转电子至关重要.
- 在多层中以接口驱动的PMA是常见的,但对于垂直到平面设备的电流是有问题的.
- - (CoPt) 合金提供了内在的PMA,避免了接口问题.
研究的目的:
- 调查等原子CoPt合金的结构,磁性和自旋极化特性.
- 比较PMA在[公式:见文本] (堆叠在[100]) 和[公式:见文本] (堆叠在[111]) 的晶体结构中.
- 确定CoPt适用于超导自旋电子应用的适用性.
主要方法:
- 同原子CoPt合金的生长.
- 综合的结构性质. 结构性质.
- 测量磁性属性,包括异构性.
- 旋转极化测量. 旋转极化测量.
主要成果:
- 在[公式:参见文本] CoPt结构中观察到垂直磁性异构.
- 在[公式:参见文本]CoPt结构中发现磁性异构是垂直于[100]平面.
- [公式:查看文本]和[公式:查看文本]的弹道旋转极化值被确定为两个结构.
结论:
- [公式:参见文本] CoPt 结构表现出内在的 PMA,对旋转电子有好处.
- CoPt合金为多层薄膜提供了强大的替代方案,用于需要垂直于平面的电流的应用.
- 对CoPt合金的进一步研究可以提高自旋电子和超导自旋电子设备的性能.
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