| Autor: |
Tang, Y, Sena, RP, Avdeev, M, Battle, PD, Hunter, EC |
| Rok vydání: |
2017 |
| Zdroj: |
Journal of Solid State Chemistry. 253 |
| ISSN: |
0022-4596 |
| Popis: |
A polycrystalline sample of Ba3Fe2TeO9 having the 6H perovskite structure has been prepared in a solid-state reaction and studied by a combination of electron microscopy, Mössbauer spectroscopy, magnetometry, X-ray diffraction and neutron diffraction. Partial ordering of Fe3+ and Te6+ cations occurs over the six-coordinate sites; the corner-sharing octahedra are predominantly occupied by the former and the face-sharing octahedra by a 1:1 mixture of the two. On cooling through the temperature range 18 < T/K < 295 an increasing number of spins join an antiferromagnetic backbone running through the structure while the remainder show complex relaxation effects. At 3 K an antiferromagnetic phase and a spin glass coexist. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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