| Автор | Rajeev Gupta |
| Автор | Janhavi P Joshi |
| Автор | S V Bhat |
| Автор | A K Sood |
| Автор | C N R Rao |
| Дата выпуска | 2000-07-31 |
| dc.description | We report the first electron paramagnetic resonance studies of single crystals and powders of Pr<sub>0.6</sub>Ca<sub>0.4</sub>MnO<sub>3</sub> in the 300-4.2 K range, covering the charge-ordering transition (T<sub>co</sub>) at ~240 K and antiferromagnetic transition (T<sub>N</sub>) at ~170 K. The asymmetry parameter for the Dysonian single-crystal spectra shows an anomalous increase at T<sub>co</sub>. Below T<sub>co</sub> the g-value increases continuously, suggesting a gradual strengthening of the orbital ordering. The linewidth undergoes a sudden increase at T<sub>co</sub> and continues to increase down to T<sub>N</sub>. The intensity increases as the temperature is decreased until T<sub>co</sub> is reached, due to the renormalization of the magnetic susceptibility arising from the build-up of ferromagnetic correlations. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | An electron paramagnetic resonance study of Pr<sub>0.6</sub>Ca<sub>0.4</sub>MnO<sub>3</sub> across the charge-ordering transition |
| Тип | paper |
| DOI | 10.1088/0953-8984/12/30/319 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 12 |
| Первая страница | 6919 |
| Последняя страница | 6926 |
| Выпуск | 30 |
