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| Hauptseite > Publikationsdatenbank > Magnetization-steps in Y$_{2}$CoMnO$_{6}$ double perovskite: The role of antisite disorder > print |
| Hauptseite > Publikationsdatenbank > Magnetization-steps in Y$_{2}$CoMnO$_{6}$ double perovskite: The role of antisite disorder > print |
| 001 | 171709 | ||
| 005 | 20250129094347.0 | ||
| 024 | 7 | _ | |a 10.1063/1.4896399 |2 doi |
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| 024 | 7 | _ | |a 1089-7550 |2 ISSN |
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| 037 | _ | _ | |a FZJ-2014-05278 |
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| 100 | 1 | _ | |a Pradheesh, R. |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Magnetization-steps in Y$_{2}$CoMnO$_{6}$ double perovskite: The role of antisite disorder |
| 260 | _ | _ | |a Melville, NY |c 2014 |b American Inst. of Physics |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Antisite disorder is observed to have significant impact on the magnetic properties of the double perovskite Y2CoMnO6 which has been recently identified as a multiferroic. A paramagnetic-ferromagnetic phase transition occurs in this material at Tc ≈ 75 K. At 2 K, it displays a strong ferromagnetic hysteresis with a significant coercive field of Hc ≈ 15 kOe. Sharp steps are observed in the hysteresis curves recorded below 8 K. In the temperature range 2 K ≤ T ≤ 5 K, the hysteresis loops are anomalous as the virgin curve lies outside the main loop. The field-cooling conditions as well as the rate of field-sweep are found to influence the steps. Quantitative analysis of the neutron diffraction data shows that at room temperature, Y2CoMnO6 consists of 62% of monoclinic P21/n with nearly 70% antisite disorder and 38% Pnma. The bond valence sums indicate the presence of other valence states for Co and Mn which arise from disorder. We explain the origin of steps by using a model for pinning of magnetization at the antiphase boundaries created by antisite disorder. The steps in magnetization closely resemble the martensitic transformations found in intermetallics and display first-order characteristics as revealed in the Arrott's plots. |
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| 773 | _ | _ | |a 10.1063/1.4896399 |g Vol. 116, no. 12, p. 123907 - |0 PERI:(DE-600)1476463-5 |n 12 |p 123907 |t Journal of applied physics |v 116 |y 2014 |x 1089-7550 |
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