Figure 4
Maps of Gd24Fe66.5Co9.5 using scanning transmission electron microscopy with elemental sensitivity from energy-dispersive X-rays indicate the presence of nanoscale fluctuations in the iron and gadolinium concentrations. (a) Time evolution of the magnetization in the Gd-rich and Fe-rich regions compared with the sample average. (b) Time-resolved angular momentum flow into the Gd-rich regions. Figure reprinted with permission from Graves et al. (2013). |