Single crystals of EuScCuSe3 : synthesis, experimental and DFT investigations
| Autor: | Maxim V. Grigoriev, Anna V. Ruseikina, Vladimir A. Chernyshev, Aleksandr S. Oreshonkov, Alexander A. Garmonov, Maxim S. Molokeev, Ralf J. C. Locke, Andrey V. Elyshev, Thomas Schleid |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Materials Volume 16 Issue 4 Pages: 1555 |
| DOI: | 10.18419/opus-12793 |
| Popis: | EuScCuSe3 was synthesized from the elements for the first time by the method of cesium-iodide flux. The crystal belongs to the orthorhombic system (Cmcm) with the unit cell parameters a = 3.9883(3) Å, b = 13.2776(9) Å, c = 10.1728(7) Å, V = 538.70(7) Å3. Density functional (DFT) methods were used to study the crystal structure stability of EuScCuSe3 in the experimentally obtained Cmcm and the previously proposed Pnma space groups. It was shown that analysis of elastic properties as Raman and infrared spectroscopy are powerless for this particular task. The instability of EuScCuSe3 in space group Pnma space group is shown on the basis of phonon dispersion curve simulation. The EuScCuSe3 can be assigned to indirect wide-band gap semiconductors. It exhibits the properties of a soft ferromagnet at temperatures below 2 K. Tyumen Oblast Government as part of the West-Siberian Interregional Science and Education Center’s project The Ministry of Science and Higher Education of the Russian Federation |
| Databáze: | OpenAIRE |
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