Abstract
We report on XMCD measurements at the L2,3 edges of the early 3d transition metals, Ti, V and Cr, polarized by Fe. In contrast to the classical ferromagnets Fe, Co and Ni, the XMCD spectra reveal a complex and detailed fine structure. We analyze the experimental data with the help of full-relativistic ab initio calculations of the x-ray absorption cross section μ(E) that provide the energy-dependent XMCD spectrum and the correlated magnetic moments μs and μl. We demonstrate that the use of the so-called integral sum-rules, which interrelate certain areas of the XMCD spectra to μs and μl, yield erroneous results for the early 3d elements due to 2p-3d core hole correlations in L2,3 absorption spectra.
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