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arXiv · 1905.06398

Study on CePtIn4 grown in a platelet-like morphology

Debarchan Das·Marek Daszkiewicz·Daniel Gnida·Alicja Hackemer·Mirosław Werwiński·Andrzej Szajek·Dariusz Kaczorowski
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Abstract

We present the results of our comprehensive structural investigation performed on single crystals of CePtIn4 grown from In flux in a platelet-like morphology. They were found to crystalize in an orthorhombic structure having space group Cmcm (no. 63) with the lattice parameters a = 4.52175 (15) {\AA}, b = 16.7777 (5) {\AA}, and c = 7.3903 (2) {\AA}. The unit cell volume of such crystals is slightly larger than that of previously reported needle-shaped single crystals of CePtIn4. This feature seems to influence the low-temperature physical properties of the compound, such as enhanced ordering temperature (TN = 2.3 K versus 1.65 K, observed before) along with a sharp drop in the electrical resistivity at TN (that was absent for the needle-like CePtIn4). In addition to the experimental data, we present the results of our ab-initio calculations of the electronic structure of CePtIn4 with the platelet-like morphology.

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Debarchan Das, Marek Daszkiewicz, Daniel Gnida, Alicja Hackemer, Mirosław Werwiński, Andrzej Szajek, Dariusz Kaczorowski. 2019-05-15. Study on CePtIn4 grown in a platelet-like morphology. https://doi.org/10.1016/j.ssc.2019.113717

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