Fig. 6: A typical X-ray circular dichroism (XMCD) measurement using the gated detector signal from first and second turn for both magnetization directions of the sample.
From: Flipping the helicity of X-rays from an undulator at unprecedented speed
a XMCD spectra normalized to the 800 eV value and shifted for clarity across the L3 and L2, 2p→3d resonances of Nickel in the Permalloy sample and the corresponding magnetic contrast (asymmetry) b from the first (blue) and second turn (red). Here, the signals (mean values) from the corresponding gate windows set to the first and second turn are acquired for the two different magnetization directions (+) and (−), parallel and antiparallel orientation of the pointing vector of X-rays and out-of-plane sample magnetization vector, respectively.
