Optical properties of highly reduced SrTiO32x
نویسندگان
چکیده
The reflectance of highly reduced SrTiO32x has been studied in samples where the carrier concentration—or oxygen-vacancy density — varies from about 10 to 10 cm. Several phonon modes are strongly influenced by oxygen-vacancy density. Oxygen reduction induces a mid-infrared band whose oscillator strength scales with carrier density. In highly reduced samples, a weakly localized plasmon mode develops. @S0163-1829~99!10919-6#
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