Study on CePtIn4 grown in a platelet-like morphology
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) , b = 16.7777 (5) , and c = 7.3903 (2) . 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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