Effect of crystal growth on Ti3+ centers in KTiOPO4
- 15 July 1994
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 76 (2) , 773-776
- https://doi.org/10.1063/1.357780
Abstract
A series of Ti3+ centers have been formed in hydrothermally grown and flux‐grown potassium titanyl phosphate (KTiOPO4 or KTP). These 3d1 defects (S=1/2) were created with 60 kV x rays at 77 K, and electron paramagnetic resonance and electron‐nuclear double‐resonance (ENDOR) data were taken below 30 K. The ENDOR spectra show that the two Ti3+ centers having the largest concentrations in hydrothermally grown KTP have a neighboring proton, presumably in the form of an adjacent OH− ion. In contrast, ENDOR spectra show that neither of the two Ti3+ centers having the largest concentrations in flux‐grown KTP have a neighboring proton. These significant differences in the local environment of the Ti3+ centers may help explain why KTP crystals have shown differing susceptibilities to gray tracking.This publication has 7 references indexed in Scilit:
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