Resonant inelastic x-ray scattering (RIXS) spectra of magnesium diboride

Details Resonant inelastic x-ray scattering (RIXS) spectra of magnesium diboride Resonant inelastic x-ray scattering (RIXS) spectra of magnesium diboride

2003-04-30

arxiv.org/abs/cond-mat/0304682v1

Phys Rev B, 68, 052503-1-4 (2003)

Physics

Condensed Matter

Superconductivity

4 pages with 4 figures

Scientific paper

10.1103/PhysRevB.68.052503

Using the tight-binding linear muffin-tin orbitals method, the soft x-ray fluorescence K-emission spectra of boron in MgB_2, excited close to the absorption edge, are estimated. In the calculations the angle of incidence between the direction of the incoming photon and the hexagonal axis of the specimen is 60 degrees and 75 degrees. Comparison with experiment is possible in the former case where good agreement is found. Furthermore, another resonant feature below the Fermi energy is predicted for the larger angle. This feature can be related to the excitations to the antibonding B pi-band in the neighbourhood of the L-H line in the Brillouin zone.

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