Figure 3
The angular dependence of the measured Gd L3-edge XMCD amplitude (circles) is fitted to the angular dependence of the circular polarization rate (equation 4) (full line) convoluted with a Gaussian function of width 4.5 arcsec. Angular offsets of ±75 and ±25 arcsec correspond to quarter-wave-plate and three-quarter-wave-plate conditions, respectively. |