Quadrupolar ordered state at high fields in PrPb3

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PrPb3 exhibits an antiferroquadrupolar transition at TQ = 0.4 K. In the present work, in order to reveal the order parameters of the ordered states in much higher fields than 5 T applied along the [1over(1, -) 0] direction, we performed neutron diffraction experiments in the temperature range between 50 mK and 0.8 K in magnetic fields up to 14.5 T. Above 7 T, we observed magnetic reflections at q = (δ δ 0.5) (δ ∼ 0.02) and its equivalents. The field-induced antiferromagnetic components were normal to the applied field, indicating that the quadrupolar order parameter in the high field phase should be of O22-type. © 2007 Elsevier Ltd. All rights reserved.




Onimaru, T., Aso, N., Prokes, K., Suzuki, H. S., Sato, T. J., & Sakakibara, T. (2007). Quadrupolar ordered state at high fields in PrPb3. Journal of Physics and Chemistry of Solids, 68(11), 2091–2094. https://doi.org/10.1016/j.jpcs.2007.08.034

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