An EPR study of Er 3+ impurities in RbTiOPO 4 single crystals

D. Bravo (), A. Martín, J. J. Carvajal, M. Aguiló, F. Díaz and F. J. López

The European Physical Journal B: Condensed Matter and Complex Systems, 2007, vol. 58, issue 3, 237-242

Abstract: An electron paramagnetic resonance (EPR) study of Er 3+ ions in single crystals of RbTiOPO 4 (RTP) is presented. The EPR spectra show the existence of six different Er 3+ centres. The g-matrix has been determined for these centres from the analysis of the angular dependences of the spectrum in three planes of the crystal. The study supports that erbium can enter the Rb + and Ti 4+ low-symmetry sites of RTP. This conclusion differs from those for KTP:Er 3+ and RTP codoped with Nb and Er. The different occupancies found for Er in these various crystals is suggested to be due to the differences in Er concentration. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Keywords: 76.30.Kg Rare-earth ions and impurities; 42.70.Mp Nonlinear optical crystals (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1140/epjb/e2007-00231-3

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