PIXE and magnetic investigations of LaxRE1-xF3 (RE = Ce,Nd) single crystals

Mieczyslaw L. Paradowski; Miroslaw Kulik; Wieslawa Korczak; Zbigniew Korczak

doi:10.1117/12.435835

10 August 2001 PIXE and magnetic investigations of La_xRE_1-xF₃ (RE = Ce,Nd) single crystals

Mieczyslaw L. Paradowski, Miroslaw Kulik, 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/10.1117/12.435835
Event: International Conference on Solid State Crystals 2000, 2000, Zakopane, Poland

Abstract

The mixed La_xRE_1-xF₃ single crystals doped with Gd³⁺ were grown by a modified Bridgmann- Stockbarger method. The PIXE method was used to the determination of a composition x of this material. The value of x for these samples does not differ more than 2.5 percent and 7.5 percent in La_xCe_1-xF₃ and La_xNd_1-xF₃ respectively, from the assumed one. In addition, concentrations of the doped rare earth atoms were controlled by XRF method. The abundance of other than Gd³⁺ rare earth impurities was estimated to be below 0.058 at percent. The magnetic susceptibility of the single crystals was measured in the temperature range 4-300 K, in a magnetic field B equals 0.2 T applied in the crystallographic plane perpendicular to the c-axis using the Faraday method. The magnetic susceptibility measurements confirm the lack of Ce³⁺ and Nd³⁺ clusters in the diluted crystals. The effective spins of hosts Ce³⁺ and Nd³⁺ are equal to ½ in the temperature range 4-300 K.

Citation Download Citation

Mieczyslaw L. Paradowski, Miroslaw Kulik, Wieslawa Korczak, and Zbigniew Korczak "PIXE and magnetic investigations of La_xRE_1-xF₃ (RE = Ce,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/10.1117/12.435835

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