| Автор | R L Zhang |
| Автор | J M Dai |
| Автор | W H Song |
| Автор | Y Q Ma |
| Автор | J Yang |
| Автор | J J Du |
| Автор | Y P Sun |
| Дата выпуска | 2004-04-07 |
| dc.description | The photoinduced effect, at different temperatures, on layered perovskite manganite La<sub>1.2</sub>Sr<sub>1.8</sub>Mn<sub>1.8</sub>Co<sub>0.2</sub>O<sub>7</sub> thin film deposited on a SrTiO<sub>3</sub>(100) substrate has been studied using a He–Ne laser (632.8 nm) with the power of output 25 mW at low temperatures. The electrical transport and magnetic properties of the film are investigated systematically in the temperature region from 20 to 300 K. The resistance shows a significant decrease at low temperatures (T<90 K) under laser irradiation, which can be interpreted in terms of the spin-state transition of Co<sup>3+</sup> ions. The magnetic field combined with the laser is also used to detect the photoinduced effect of the spin-glass state. The time dependence of the metastable system under several applied fields was also discussed. The system has the ability to keep a persistent memory of the magnetic history imprinted in its zero-field resistance. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | IOP Publishing Ltd |
| Название | Photoinduced spin-state transition of Co<sup>3+</sup> in the layered perovskite manganite thin film |
| Тип | paper |
| DOI | 10.1088/0953-8984/16/13/005 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 16 |
| Первая страница | 2245 |
| Последняя страница | 2251 |
| Выпуск | 13 |
