同步辐射X射线磁二色性在自旋电子学研究中的应用

Applications of X-ray magnetic dichroism in spintronics

文章对同步辐射X射线磁圆二色谱和X射线磁线二色谱的独特优点进行了综合分析,并通过一些典型应用实例说明同步辐射磁性测量技术具有元素分辨能力、高灵敏度、纳米量级空间分辨能力和皮秒量级时间分辨能力,并可用于测量铁磁性和反铁磁性,因而在自旋电子学材料和器件研究领域具有广泛的应用前景.

The advantages of X-ray magnetic circular dichroism and X-ray magnetic linear dichroism are reviewed.With some typical examples we will show that the techniques based on synchrotron facilities have many advantages,such as elemental specification,high sensitivity,nanometer space resolution,picosecond time resolution,and the capability to measure both ferromagnetic and anti-ferromagentic properties.These techniques are thus very powerful tools in the study of spintronics and its device applications.