Relativistic calculations of spin-dependent x-ray-absorption spectra. Ankudinov, A. L. & Rehr, J. J. Physical Review B, 56(4):R1712–R1716, 1997.
Relativistic calculations of spin-dependent x-ray-absorption spectra [link]Paper  doi  abstract   bibtex   
An efficient interpolative approach is presented for relativistic calculations of polarized x-ray-absorption spectra (XAS) including spin and spin-orbit interactions. The method is based on a spinor-relativistic Dirac-Fock treatment of atomic densities and dipole matrix elements, and a nonrelativistic treatment of propagation using high-order multiple scattering theory. This approach is implemented in an automated code FEFF7 which gives quantitative agreement with experiment for x-ray magnetic circular dichroism of Gd and Fe, and for polarized XAS of Cd, including both l→l±1 dipole transitions.
@article{ankudinov_relativistic_1997,
	title = {Relativistic calculations of spin-dependent x-ray-absorption spectra},
	volume = {56},
	issn = {0163-1829},
	url = {http://dx.doi.org/10.1103/physrevb.56.r1712},
	doi = {10.1103/physrevb.56.r1712},
	abstract = {An efficient interpolative approach is presented for relativistic calculations of polarized x-ray-absorption spectra (XAS) including spin and spin-orbit interactions. The method is based on a spinor-relativistic Dirac-Fock treatment of atomic densities and dipole matrix elements, and a nonrelativistic treatment of propagation using high-order multiple scattering theory. This approach is implemented in an automated code FEFF7 which gives quantitative agreement with experiment for x-ray magnetic circular dichroism of Gd and Fe, and for polarized XAS of Cd, including both l→l±1 dipole transitions.},
	number = {4},
	journal = {Physical Review B},
	author = {Ankudinov, A. L. and Rehr, J. J.},
	year = {1997},
	keywords = {xmcd},
	pages = {R1712--R1716}
}

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