| Автор | Wu, Dan |
| Автор | Khalifah, P G |
| Автор | Mandrus, D G |
| Автор | Wang, N L |
| Дата выпуска | 2008-08-13 |
| dc.description | We present the optical study of the ruthenate La<sub>4</sub>Ru<sub>2</sub>O<sub>10</sub>, which undergoes a semiconductor–semiconductor transition at 160 K. Two Ru–Ru interband transition peaks can be found in its HT phase. When temperature decreases across the transition, a transfer of spectral weight from low to high energy occurs. The peak which is located at lower energy in the HT phase is strongly suppressed below 160 K. Based on the analysis of structural distortions associated with this transition, we show that the spectral changes can be well understood by considering energetically reasonable orbital-selective occupancies of Ru t<sub>2g</sub> electrons. This proposed order of orbital energies offers specific insights into the HT insulating behavior, while the LT picture supports the current picture of a spin-singlet ground state. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | IOP Publishing Ltd |
| Название | Optical study of the orbital ordered state in La<sub>4</sub>Ru<sub>2</sub>O<sub>10</sub> |
| Тип | paper |
| DOI | 10.1088/0953-8984/20/32/325204 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 20 |
| Первая страница | 325204 |
| Последняя страница | 325208 |
| Аффилиация | Wu, Dan; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, People’s Republic of China |
| Аффилиация | Khalifah, P G; Department of Chemistry, Stony Brook University, Stony Brook, NY 11794, USA ; Department of Chemistry, Brookhaven National Laboratory, Upton, NY 11793, USA |
| Аффилиация | Mandrus, D G; Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA |
| Аффилиация | Wang, N L; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, People’s Republic of China ; |
| Выпуск | 32 |
