Department of Materials, Physics, and Energy Engineering, Nagoya University, Chikusa, Nagoya 464-8603, Japan.
Ultramicroscopy. 2013 Feb;125:89-96. doi: 10.1016/j.ultramic.2012.09.008. Epub 2012 Sep 29.
We present a parameter-free method of extraction of the electron magnetic circular dichroism spectra from energy-filtered diffraction patterns measured on a crystalline specimen. The method is based on a multivariate curve resolution technique. The main advantage of the proposed method is that it allows extraction of the magnetic signal regardless of the symmetry and orientation of the crystal, as long as there is a sufficiently strong magnetic component of the signal in the diffraction plane. This method essentially overcomes difficulties in extraction of the EMCD signal caused by complexity of dynamical diffraction effects.
我们提出了一种从晶体样品上测量的能量过滤衍射图中提取电子磁圆二色光谱的无参数方法。该方法基于多变量曲线分辨技术。所提出方法的主要优点是，只要在衍射平面中有足够强的信号的磁性分量，就可以提取磁性信号，而与晶体的对称性和取向无关。该方法实质上克服了由于动态衍射效应的复杂性而导致的提取 EMCD 信号的困难。
