Photoacoustic investigation of the absorption edge of Cd1−x Fe x Te compounds |
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Authors: | A. C. Felici N. Galbato D. Debowska T. Papa M. Piacentini F. Lama |
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Affiliation: | 1. Dipartimento di Energetica, Università degli Studi di Roma ?La Sapienza?, Via Scarpa 14, 00161, Roma, Italia 2. Institute of Physics, Jagellonian University, Reymonta 4, 30-059, Krakow, Poland 3. Consorzio INFM, Via Dodecaneso 33, 16146, Genova, Italia
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Abstract: | Summary We have measured at room temperature the photoacoustic spectra of Cd1−x Fe x Te(0<x<0.055) around the CdTe fundamental absorption threshold. We identified an absorption band at (1.38±0.01) eV, increasing with the Fe concentration, that we assigned to the5 E→3 T 1 transition within the Fe2+ (3d 6) manifold. We observed also a broadening and a shift to higher energies of the CdTe absorption edge for increasingx. Work partially supported by the Italian Consorzio INFM and CNR through the GNSM. |
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Keywords: | Optical properties of bulk materials |
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