Figure 3
XMCD spectra (solid and dash-dot-dash lines) in an h.c.p. cobalt polycrystal along with its absorption spectrum (dotted line), measured with the double X-ray phase retarders. The directions of the magnetic field were parallel (solid line) and anti-parallel (dash-dot-dash line) to the X-ray photon spin direction of the right-circular polarization. Preset times were 10, 20, 30 and 40 s for −20 to −10, −10 to 0, 0 to 20 and 20 to 50 eV in the abscissa. |