Gd3+-Yb3+ exchange interactions in LiYbxY1-xF4 single crystals

Lucjan E. Misiak

doi:10.1117/12.435820

10 August 2001 Gd³⁺-Yb³⁺exchange interactions in LiYb_xY_1-xF₄ single crystals

Lucjan E. Misiak

Proceedings Volume 4412, International Conference on Solid State Crystals 2000: Growth, Characterization, and Applications of Single Crystals; (2001) https://doi.org/10.1117/12.435820
Event: International Conference on Solid State Crystals 2000, 2000, Zakopane, Poland

Abstract

The evaluated Gd³⁺-Yb³⁺ exchange interactions over the nearest and the next-nearest neighbors in LiYb_xY_1-1F₄ are found to increase in parabolic manner with x, the concentration of Yb³⁺ ions. The Gd³⁺-Yb³⁺ exchange interactions are sensitive to x in the range x equals 0.6-1.0, while they are almost constant in the range x- equals 0.1-0.5. The estimated Gd³⁺-Yb³⁺ exchange interaction constants are in the range 0.5-2.8 Ghz for x from 0.1 to 1, respectively. These exchange interaction constants are increased with lowering temperature. The results are comparable to those of estimated using the molecular-field model. The average Gd³⁺-Yb³⁺ pari exchange interaction constant is determined to be 0.33 Ghz in paramagnetically diluted LiYb_xY_1-xF₄ crystals.

Citation Download Citation

Lucjan E. Misiak "Gd³⁺-Yb³⁺exchange interactions in LiYb_xY_1-xF₄ 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/10.1117/12.435820

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