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We develop a self-consistent Maxwell-Bloch formalism for the interaction ofX-rays with two-dimensional crystalline materials by incorporating the Blochtheorem and Coulomb many-body interaction. This formalism is illustrated forgraphene, by calculating the polarization-dependent XANES, formulatingexpressions for the radiative and Meinter-Auger recombination of core-holes,and the discussion of microscopic insights into the spectral oscillations ofEXAFS beyond point scattering theory. In particular, the correct inclusion oflattice periodicity in our evaluation allows us to assign so far uninterpretedspectral features in the Fourier transformed EXAFS spectrum.

Theory of X-ray absorption spectroscopy: a microscopic Bloch equation approach for two-dimensional solid states