Academic Journal
X-ray Absorption Spectroscopy Study of the Effect of Rh doping in Sr2IrO4
| العنوان: | X-ray Absorption Spectroscopy Study of the Effect of Rh doping in Sr2IrO4 |
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| المؤلفون: | Sohn, C. H., Cho, Deok-Yong, Kuo, C.-T., Sandilands, L. J., Qi, T. F., Cao, G., Noh, T. W. |
| المصدر: | Scientific Reports ; volume 6, issue 1 ; ISSN 2045-2322 |
| بيانات النشر: | Springer Science and Business Media LLC |
| سنة النشر: | 2016 |
| الوصف: | We investigate the effect of Rh doping in Sr 2 IrO 4 using X-ray absorption spectroscopy (XAS). We observed appearance of new electron-addition states with increasing Rh concentration (x in Sr 2 Ir 1−x Rh x O 4 ) in accordance with the concept of hole doping. The intensity of the hole-induced state is however weak, suggesting weakness of charge transfer (CT) effect and Mott insulating ground states. Also, Ir J eff = 1/2 upper Hubbard band shifts to lower energy as x increases up to x = 0.23. Combined with optical spectroscopy, these results suggest a hybridisation-related mechanism, in which Rh doping can weaken the (Ir J eff = 1/2)–(O 2 p ) orbital hybridisation in the in-planar Rh-O-Ir bond networks. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1038/srep23856 |
| الاتاحة: | http://dx.doi.org/10.1038/srep23856 https://www.nature.com/articles/srep23856.pdf https://www.nature.com/articles/srep23856 |
| Rights: | https://creativecommons.org/licenses/by/4.0 ; https://creativecommons.org/licenses/by/4.0 |
| رقم الانضمام: | edsbas.D0F5A3D |
| قاعدة البيانات: | BASE |
| DOI: | 10.1038/srep23856 |
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