Single crystal growth of CeTAl3 (T = Cu, Ag, Au, Pd and Pt)

Franz, C.; Senyshyn, A.; Regnat, A.; Duvinage, C.; Schönmann, R.; Bauer, A.; Prots, Y.; Akselrud, L.; Hlukhyy, V.; Baran, V.; Pfleiderer, C.

doi:10.1016/j.jallcom.2016.07.071

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Single crystal growth of CeTAl₃ (T = Cu, Ag, Au, Pd and Pt)

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Prots, Y.
Yuri Prots, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Akselrud, L.
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Franz, C., Senyshyn, A., Regnat, A., Duvinage, C., Schönmann, R., Bauer, A., et al. (2016). Single crystal growth of CeTAl₃ (T = Cu, Ag, Au, Pd and Pt). Journal of Alloys and Compounds, 688, Part A, 978-986. doi:10.1016/j.jallcom.2016.07.071.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002B-4DEB-E

Abstract

Abstract We report single crystal growth of the series of CeTAl3 compounds with T = Cu, Ag, Au, Pd and Pt by means of optical float zoning, where high crystal quality was confirmed in a thorough characterization process. With the exception of CeAgAl3, all compounds crystallize in the non-centrosymmetric tetragonal BaNiSn3 structure (space group: I4mm, No. 107), whereas CeAgAl3 adopts the related orthorhombic PbSbO2Cl structure (Cmcm, No. 63). An attempt to grow CeNiAl3 resulted in the composition CeNi2Al5. Low temperature resistivity measurements down to ∼ 0.1 K did not reveal evidence suggestive of magnetic order in CePtAl3 and CePdAl3. In contrast, CeAuAl3, CeCuAl3 and CeAgAl3 display signatures of magnetic transitions at 1.3 K, 2.1 K and 3.2 K, respectively. This is consistent with previous reports of antiferromagnetic order in CeAuAl3 and CeCuAl3 as well as ferromagnetism in CeAgAl3, respectively.