| Автор | N A Babushkina |
| Автор | E A Chistotina |
| Автор | K I Kugel |
| Автор | A L Rakhmanov |
| Автор | O Yu Gorbenko |
| Автор | A R Kaul |
| Дата выпуска | 2003-01-22 |
| dc.description | Electrical resistivity, magnetoresistance and magnetic susceptibility were measured for ceramic (La<sub>1−y</sub> Pr<sub>y</sub>)<sub>0.7</sub>Ca<sub>0.3</sub>MnO<sub>3</sub> samples (y 0.75 and 1) with different content of <sup>18</sup>O isotope. All samples were paramagnetic insulators in the high-temperature range. Some of them became ferromagnetic (FM) metals at temperatures below 60–80 K. The high-temperature behaviour of the resistivity, magnetoresistance and magnetic susceptibility was practically identical for all samples in spite of the significant difference in their low-temperature properties. In particular, the magnetoresistance was proportional to the magnetic field squared and decreased approximately as 1/T<sup>5</sup> in a wide magnetic field and temperature range. The results were interpreted based on the concept of an inhomogeneous state with pronounced FM correlations in the paramagnetic phase. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Magnetoresistance and magnetic susceptibility of phase-separated La–Pr–Ca manganites |
| Тип | paper |
| DOI | 10.1088/0953-8984/15/2/325 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 15 |
| Первая страница | 259 |
| Последняя страница | 266 |
| Выпуск | 2 |
