کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1592954 | 1002680 | 2012 | 4 صفحه PDF | دانلود رایگان |
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.
Journal: Solid State Communications - Volume 152, Issue 13, July 2012, Pages 1112–1115