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Journal Article

Evolution of the partially frustrated magnetic order in CePd1-xNixAl

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Huesges,  Zita
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Lucas,  Stefan
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Wunderlich,  Sarah
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126865

Stockert,  Oliver
Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Huesges, Z., Lucas, S., Wunderlich, S., Yokaichiya, F., Prokes, K., Schmalzl, K., et al. (2017). Evolution of the partially frustrated magnetic order in CePd1-xNixAl. Physical Review B, 96(14): 144405, pp. 1-5. doi:10.1103/PhysRevB.96.144405.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002E-12F7-C
Abstract
We report on a single-crystal neutron-diffraction study of the evolution of the antiferromagnetic order in the heavy-fermion compound CePd1-x NixAl which exhibits partial geometric frustration due to its distorted kagome structure. The magnetic structure is found to be unchanged with a propagation vector Q(AF) approximate to (0.500.35) for all Ni concentrations x up to x(c) approximate to 0.14. Upon approaching the quantum critical concentration xc, the ordered moment vanishes linearly with Neel temperature TN, in good agreement with CePdAl under hydrostatic pressure. For all Ni concentrations, substantial short-range magnetic correlations are observed above TN as a result of frustration.