Quadrupolar ordered state at high fields in PrPb 3

PrPb 3 exhibits an antiferroquadrupolar transition at T Q = 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 [1 1 ¯ 0] direction, we performed neutron diffraction experiments in the temperature range between 5...

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Bibliographic Details
Published in:The Journal of physics and chemistry of solids 2007-11, Vol.68 (11), p.2091-2094
Main Authors: Onimaru, T., Aso, N., Prokes, K., Suzuki, H.S., Sato, T.J., Sakakibara, T.
Format: Article
Language:English
Subjects:
C. Neutron scattering
D. Magnetic structure
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Summary:PrPb 3 exhibits an antiferroquadrupolar transition at T Q = 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 [1 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 O 2 2 -type.
ISSN:0022-3697
1879-2553
DOI:10.1016/j.jpcs.2007.08.034