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The 181Hf/181Ta Probe in the Li and Nb Sites of Congruent Linbo3 Co-doped with Mg and Cr Ions Studied by γ–γ PAC |
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| Authors: | S A Dias J G Marques J G Correia J A Sanz J C Soares |
| Institution: | (1) CFNUL, Universidade de Lisboa, Av. Prof. Gama Pinto 2, P-1649-003 Lisboa, Portugal;(2) Instituto Tecnológico e Nuclear, Estrada Nacional 10, P-2685-953 Sacavém, Portugal;(3) Departamento de Física de Materiales, C-IV, Universidade Autónoma, E-28049 Madrid, Spain |
| Abstract: | The results reported in this work show the relevance of the lithium deficiency for the Li lattice site occupation of dopants in congruent lithium niobate crystals co-doped with 0.1 mol% Cr2O3 and different concentrations of HfO2, up to 3 mol%. The same behavior is observed in a crystal doped with 1 mol% of HfO2 and co-doped with 4 mol% MgO where after annealing most of the Hf/Ta probes occupy the Nb lattice site. |
| Keywords: | LiNbO3 Neutron-irradiation Perturbed angular correlation spectroscopy |
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