| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1592954 | Solid State Communications | 2012 | 4 Pages |
We have found that SmFeO3, a family of rare-earth orthoferrites, exhibits temperature-induced magnetization reversal below the critical low-temperature along the a-axis of Pbnm symmetry. First-principles calculations demonstrate that this negative magnetization is mainly attributed to the competition between two magnetocrystalline anisotropy terms in the inequivalent magnetic sites of Sm3+ and Fe3+. Interestingly, the room temperature magnetization-field curve further shows an ultra-fast magnetization switch in the low-magnetic field, suggesting a potential applicability to high-speed magnetic switching devices.
► Magnetization reversal below the critical low-temperature along the a-axis of Pbnm. ► The competition between two magnetocrystalline anisotropy terms (Sm3+ and Fe3+). ► Ultra-fast magnetization switch in the low-magnetic field.
