The Ba 4d-f giant dipole resonance as a probe of the structure of endohedral Ba@C_n metallofullerenes

Jarek Luberek , Goran Wendin (Department of Applied Physics , Chalmers University of Technology)

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classification ❄️ cond-mat

keywords dipolegiantresonancesphericalstructureversusxanesabsorption

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We calculate the x-ray absorption near edge structure (XANES) modulating the Ba 4d-photoabsorption cross section - the giant dipole resonance - centered around 110 eV photon energy for several models of spherical and non-spherical Ba@C_n metallofullerene cage systems. In the cases considered, the XANES interference patterns provide clear structural "fingerprints", distinguishing between center versus off-center Ba position and spherical versus deformed C_n shell.

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The Ba 4d-f giant dipole resonance as a probe of the structure of endohedral Ba@C_n metallofullerenes

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