Investigations of the g factors and local structure for orthorhombic Cu²+(1) site in fresh PrBa₂Cu₃O₆+x powders
The electron paramagnetic resonance (EPR) g factors gx, gy and gz of the orthorhombic Cu²⁺ (1) site in fresh PrBa₂Cu₃O₆+x powders are theoretically investigated using the perturbation formulas of the g factors for a 3d⁹ ion under orthorhombically elongated octahedra. The local orthorhombic distortio...
Збережено в:
| Дата: | 2012 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2012
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/120176 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Investigations of the g factors and local structure for orthorhombic Cu²+(1) site in fresh PrBa₂Cu₃O₆+x powders / M.Q.Kuang, S.Y. Wu, B.T. Song, X.F. Hu // Condensed Matter Physics. — 2012. — Т. 15, № 3. — С. 33701:1-6. — Бібліогр.: 24 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The electron paramagnetic resonance (EPR) g factors gx, gy and gz of the orthorhombic Cu²⁺ (1) site in fresh PrBa₂Cu₃O₆+x powders are theoretically investigated using the perturbation formulas of the g factors for a 3d⁹ ion under orthorhombically elongated octahedra. The local orthorhombic distortion around the Cu²⁺(1) site due to the Jahn-Teller effect is described by the orthorhombic field parameters from the superposition model. The [CuO6]¹⁰⁻ complex is found to experience an axial elongation of about 0.04 Å along c axis and the relative bond length variation of about 0.09 Å along a and b axes of the Jahn-Teller nature. The theoretical results of the g factors based on the above local structure are in reasonable agreement with the experimental data. |
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