Crystal field study of Gd3+-doped LaxRE1-xF3 (RE = Ce,Pr,Nd) single crystals

Mieczyslaw L. Paradowski; Lucjan E. Misiak; Wieslawa Korczak; Zbigniew Korczak

doi:10.1117/12.435834

10 August 2001 Crystal field study of Gd³⁺-doped La_xRE_1-xF₃ (RE = Ce,Pr,Nd) single crystals

Mieczyslaw L. Paradowski, Lucjan E. Misiak, Wieslawa Korczak, Zbigniew Korczak

Proceedings Volume 4412, International Conference on Solid State Crystals 2000: Growth, Characterization, and Applications of Single Crystals; (2001) https://doi.org/10.1117/12.435834
Event: International Conference on Solid State Crystals 2000, 2000, Zakopane, Poland

Abstract

The mixed La_xRE_1-xF₃ single crystal doped with Gd³⁺ were grown by a modified Bridgmann- Stockbarger method. The crystal field was investigated using electron paramagnetic resonance technique. The angular dependencies of Gd³⁺ line positions with magnetic field oriented in plane were measured in the temperature range 4.2-295 K. The surroundings of Gd³⁺ ions were investigated analyzing spin-Hamiltonian parameters in the light of the superposition model. The small distortion of the D⁴_3D trigonal symmetry has been observed in LaF₃, La_0.9Ce_0.1F₃ and La_0.9Nd_0.1F₃ below 150K. The local structure deformation of the site symmetry of Dg³⁺ ions induced by temperature starts at about 150K becoming larger at 4.2K. In PrF₃ the distortion was not observed in the temperature range 4.2- 295K. The results were compared with those of Gd³⁺- doped LiYF₄ crystals.

Citation Download Citation

Mieczyslaw L. Paradowski, Lucjan E. Misiak, Wieslawa Korczak, and Zbigniew Korczak "Crystal field study of Gd³⁺-doped La_xRE_1-xF₃ (RE = Ce,Pr,Nd) single crystals", Proc. SPIE 4412, International Conference on Solid State Crystals 2000: Growth, Characterization, and Applications of Single Crystals, (10 August 2001); https://doi.org/10.1117/12.435834

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