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Abstract The band structure of Ca 3 Ga 2 Ge 3 О 12 with the garnet structure has been determined for the first time by X-ray emission and photoelectron spectroscopy.… Click to show full abstract
Abstract The band structure of Ca 3 Ga 2 Ge 3 О 12 with the garnet structure has been determined for the first time by X-ray emission and photoelectron spectroscopy. It has been established that the bottom of the valence band is formed by Ge d states, which are not dominant in the chemical bonding. Strong hybridization of oxygen 2 s states with 4 p states of Ga and Ge revealed by the presence of an extra structure in the X-ray emission spectra has been found. The middle of the valence band has been demonstrated to be occupied by d states of Ga, while Ga and Ge 4 р states with a considerable admixture of oxygen 2 p states form the top of the valence band.
Journal Title: Solid State Sciences
Year Published: 2017
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