Interference of magnetic and anisotropic tensor susceptibility reflections in resonant X-ray scattering of GdB4

Phys Rev Lett. 2003 Dec 19;91(25):257205. doi: 10.1103/PhysRevLett.91.257205. Epub 2003 Dec 16.

Abstract

Resonant x-ray scattering experiments at the Gd L3 edge show interference between magnetic and anisotropic tensor susceptibility (ATS) reflections in GdB4. Energy profiles obtained from the magnetic and ATS resonances exhibited approximately 10 eV separation between the maximum resonance energies. The findings show that the Gd 5d band experienced hybridization giving rise to a significant split into isotropic lower energy band and distorted upper band states that account for the magnetic and ATS scattering, respectively.