| Автор | P Raychaudhuri |
| Автор | T K Nath |
| Автор | P Sinha |
| Автор | C Mitra |
| Автор | A K Nigam |
| Автор | S K Dhar |
| Автор | R Pinto |
| Дата выпуска | 1997-12-08 |
| dc.description | We have studied the evolution of the transport and magnetic properties with holmium doping for . We observe a systematic decrease in the ferromagnetic transition temperature , the metal - insulator transition temperature and the rhombohedral cell volume with increasing holmium concentration. For the concentration with x = 0.4, we observe a metallic spin-glass phase with the spin-glass freezing temperature , and a large magnetoresistance ratio at low temperature, which indicates that a proportion of the spins are in a frustrated state. The high-field magnetization of the holmium-doped samples is much less than the magnetization that would be expected if the were in a ferromagnetic state, showing that there is substantial canting in the manganese lattice. We believe that the ferromagnetic component in the spin-glass phase for x = 0.4 crosses the percolation threshold, giving rise to metallicity in the sample. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The effect of holmium doping on the magnetic and transport properties of |
| Тип | paper |
| DOI | 10.1088/0953-8984/9/49/011 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 9 |
| Первая страница | 10919 |
| Последняя страница | 10927 |
| Аффилиация | P Raychaudhuri; Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai-400 005, India |
| Аффилиация | T K Nath; Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai-400 005, India |
| Аффилиация | P Sinha; Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai-400 005, India |
| Аффилиация | C Mitra; Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai-400 005, India |
| Аффилиация | A K Nigam; Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai-400 005, India |
| Аффилиация | S K Dhar; Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai-400 005, India |
| Аффилиация | R Pinto; Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai-400 005, India |
| Выпуск | 49 |
