Abstract

In a number of solid state systems with localized conduction band states and excitonic states, sharp features in absorption spectra were observed. We have measured the x-ray absorption spectra from borides, nitrides, and some calcium and titanium compounds using BL 6.3.2, an entrance slitless bend magnet beamline operating in the 50–1000 eV region, equipped with a Hettrick-Underwood type varied line space (VLS) grating monochromator. As an example, absorption measurement of selected compounds in B-K (∼190 eV), CaL (∼350 eV), and TiL (∼460 eV) x-ray region will be presented along with their accurate energy positions.

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