Crystal Growth and the Magnetic Properties of Na2Co2TeO6 with Quasi-Two-Dimensional Honeycomb Lattice
| Autor: | Dequan Jiang, Yujie Song, Zhengcai Xia, X. Y. Yue, Wanwan Zhang, G.L. Xiao, Xiaoxing Zhang, Feng Yang, M. Wei, Han Deng, Sha Huang |
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| Rok vydání: | 2019 |
| Předmět: |
Phase transition
Materials science Condensed matter physics 010405 organic chemistry Crystal growth General Chemistry Crystal structure 010402 general chemistry Condensed Matter Physics 01 natural sciences Magnetic susceptibility 0104 chemical sciences Magnetic field Magnetization Condensed Matter::Superconductivity Condensed Matter::Strongly Correlated Electrons General Materials Science Crystallite Single crystal |
| Zdroj: | Crystal Growth & Design. 19:2658-2662 |
| ISSN: | 1528-7505 1528-7483 |
| Popis: | Single crystal Na2Co2TeO6 has been successfully grown by self-flux method, and its lattice structure and basic magnetic properties were characterized. As determined by single crystal X-ray diffraction, Na2Co2TeO6 belongs to space group P6322 (182) with a = b = 5.2709(2) A, c = 11.2615(15) A, and V = 270.95 (4) A3, the crystal structure is a layered honeycomb formed by CoO6 octahedra and the TeO6 octahedra in the center of the honeycomb layers, and the NaO6 octahedra are between the honeycomb layers. Magnetic susceptibility measurements indicate that the single crystal sample displays a distinct anisotropic behavior and the spin parallels the honeycomb plane (ab-plane). In a lower temperature region, a series of antiferromagnetic-like (AFM-like) phase transitions were observed, which may result from the spin reorientation of Co2+ ions. The different magnetization behavior between the polycrystalline structure and the single crystal (with the magnetic field parallel to and perpendicular to the ab-plane) rev... |
| Databáze: | OpenAIRE |
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