Temperature Dependence of Magnetization Reversal οf Thin Manganite Film |
| L. Uspenskayaa, T. Nurgalievb and S. Mitevab
a Institute of Solid State Physics RAS, Chernogolovka, 142432 Moscow dist., Russia b Institute of Electronics BAS, 1784 Sofia, Bulgaria |
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| The magnetic domain structure, its transformation with temperature, and the magnetization reversal in 20 nm La0.7Sr0.3MnO3 film grown on LaAlO3 substrate by off-axis magnetron sputtering at 700°C and post-annealed at 600°C were studied in a wide temperature range. The magnetic domains with either in-plane- or out-of-plane-orientation of the vector of spontaneous magnetization were observed in the same film depending on the prehistory. The domains with the in-plane magnetization were found to be more stable. Magnetization reversal of the film was shown to occur via the nucleation and motion of 180-degree head-to-head domain walls, the number and the type of which were found to be dependent on temperature. Moreover, the transition between two magnetization reversal regimes was found at 30 K. |
| DOI: 10.12693/APhysPolA.117.207 PACS numbers: 75.30.Gw, 75.30.Hx, 75.47.Lx, 75.60.Jk, 75.60.Lr, 75.70.Ak, 75.70.Kw |