Photogenerated Carriers in SrTiO3 Probed by Mid-Infrared Absorption

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dc.creatorOkamura, H.
dc.creatorMatsubara, M.
dc.creatorTanaka, K.
dc.creatorFukui, K.
dc.creatorNakagawa, H.
dc.creatorIkemoto, Y.
dc.creatorMoriwaki, T.
dc.creatorKimura, H.
dc.creatorNanba, T.
dc.date2005-10-31
dc.date.accessioned2026-07-07T06:45:42Z
dc.date.available2026-07-07T06:45:42Z
dc.descriptionInfrared absorption spectra of SrTiO$_3$ have been measured under above-band-gap photoexcitations to study the properties of photogenerated carriers, which should play important roles in previously reported photoinduced phenomena in SrTiO$_3$. A broad absorption band appears over the entire mid-infrared region under photoexcitation. Detailed energy, temperature, and excitation power dependences of the photoinduced absorption are reported. This photo-induced absorption is attributed to the intragap excitations of the photogenerated carriers. The data show the existence of a high density of in-gap states for the photocarriers, which extends over a wide energy range starting from the conduction and valence band edges.
dc.description5 pages, 5 figures, submitted to J. Phys. Soc. Jpn
dc.identifierhttps://arxiv.org/abs/cond-mat/0510827
dc.identifierhttp://arxiv.org/abs/cond-mat/0510827
dc.identifierJ. Phys. Soc. Jpn. 75 (2006) 023703.
dc.identifierdoi:10.1143/JPSJ.75.023703
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/103120
dc.subjectOther Condensed Matter
dc.titlePhotogenerated Carriers in SrTiO3 Probed by Mid-Infrared Absorption
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