Temperature-induced magnetization reversal and ultra-fast magnetic switch at low field in SmFeO3 |
| |
| Authors: | Young Kyu Jeong Jung-Hoon Lee Suk-Jin Ahn Hyun M Jang |
| |
| Institution: | 1. Department of Materials Science and Engineering, and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea;2. Department of Physics, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea;1. Centre for Crystal Growth, VIT University, Vellore, Tamil Nadu, India;2. Crystal Growth Laboratory, Laser Materials Development and Devices Division, RRCAT, Indore, India;3. Material Science Group, IGCAR, Kalpakkam, Tamil Nadu, India;1. School of Physics, Southeast University, Jiangning District, Nanjing 211189, People’s Republic of China;2. School of Chemistry and Chemical Engineering, Southeast University, Jiangning District, Nanjing 211189, People’s Republic of China;1. Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai 200050, China;2. Graduate School of the Chinese Academy of Sciences, Beijing 100049, China;3. Department of Physics, Shanghai University, Shanghai 200444, China;4. Shanghai Engineering Research Center for Sapphire Crystals, Shanghai 201899, China;5. Ioffe Physical-Technical Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia;1. Solid State Ionics and Energy Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore 641 046, India;2. Department of Physics, Indian Institute of Technology, Kanpur 208016, India;3. Department of Ceramic Technology, Anna University, Chennai 600 025, India;4. School of Engineering and Information Technology, Murdoch University, South St. Murdoch, WA 6150, Australia;1. Department of Physics, Bose Institute, 93/1 Acharya Prafulla, Chandra Road, Kolkata, 700009, India;2. Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake, Kolkata, 700106, India |
| |
| Abstract: | 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. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
