Orbital, charge, and spin couplings in Ru 25+O9 dimers of Ba3CoRu2O9
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| Title: | Orbital, charge, and spin couplings in Ru 25+O9 dimers of Ba3CoRu2O9 |
| Author: | Zhou, Haidong Kiswandhi, Andhika Barlas, Yafis Brooks, James Siegrist, Theo Max Li, G. Balicas, Luis Cheng, J. G. Rivadulla, Francisco |
| Affiliation: | Universidade de Santiago de Compostela. Centro de Investigación en Química Biolóxica e Materiais Moleculares Universidade de Santiago de Compostela. Departamento de Química Física |
| Date of Issue: | 2012 |
| Publisher: | APS Physics |
| Citation: | Zhou, H., Kiswandhi, A., Barlas, Y., Brooks, J., Siegrist, T., & Li, G. et al. (2012). Orbital, charge, and spin couplings in Ru25+O9dimers of Ba3CoRu2O9. Physical Review B, 85(4). doi: 10.1103/physrevb.85.041201 |
| Abstract: | e magnetic, transport, and structural properties of cold-pressed Ba3CoRu2O9 show (i) an antiferromagnetic transition, (ii) a semiconductor-semiconductor electronic transition where the resistivity is dominated by the electron hopping between the Ru25+O9 dimers with itinerant Ru electrons at high temperatures, and (iii) a hexagonal to orthorhombic structural phase transition. All three transitions occur at 93 K and are related to the Ru5+ ions in the Ru2O9 dimers. The Ru-O bond distortion below 93 K further indicates a possible orbital ordering for Ru5+ ions in isolated Ru2O9 dimers, which accounts for the strong orbital, charge, and spin couplings |
| Publisher version: | https://doi.org/10.1103/PhysRevB.85.041201 |
| URI: | http://hdl.handle.net/10347/17038 |
| DOI: | 10.1103/PhysRevB.85.041201 |
| ISSN: | 2469-9950 |
| E-ISSN: | 2469-9969 |
| Rights: | © 2012 American Physical Society |
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