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Title of Journal: Appl Phys B

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Abbravation: Applied Physics B

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Springer-Verlag

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DOI

10.1016/0161-5890(79)90009-9

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1432-0649

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Infrared absorption spectra of pure and doped YAl

Authors: L Kovács M Mazzera E Beregi R Capelletti
Publish Date: 2008/12/03
Volume: 94, Issue: 2, Pages: 273-277
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Abstract

Several weak absorption bands have been observed in the optical absorption spectra of pure and rareearthdoped YAl3BO34 single crystals in the 3350– 3650 cm−1 wave number region Two of them peaking at about 3377 cm−1 and 3580 cm−1 in the 8 K spectra appear in most of the samples They are tentatively attributed to the stretching mode of OH− ions incorporated in the crystal during the growth An additional absorption band at about 5250 cm−1 at 8 K has also been detected in almost all samples The temperature and polarization dependences of these bands and their possible origin are discussed

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