Terahertz spectroscopy of antiferromagnetic resonances in YFe1-xMnxO3 (0 <= x <= 0.4) across a spin reorientation transition
- Authors
- Lee Howon; Jung Taek Sun; Shin Hyun Jun; Oh Sang Hyup; Sim Kyung Ik; Ha Taewoo; Choi Young Jai; Kim Jae Hoon
- Issue Date
- Nov-2021
- Publisher
- American Institute of Physics
- Citation
- Applied Physics Letters, v.119, no.19
- Journal Title
- Applied Physics Letters
- Volume
- 119
- Number
- 19
- URI
- https://yscholarhub.yonsei.ac.kr/handle/2021.sw.yonsei/6475
- ISSN
- 0003-6951
1077-3118
- Abstract
- We have conducted a terahertz spectroscopic study of antiferromagnetic resonances in bulk orthoferrite YFe1-xMnxO3 0 <= x <= 0.4. Both the quasi-ferromagnetic resonance mode and the quasi-antiferromagnetic resonance mode in the weak ferromagnetic Gamma(4) phase disappear near the spin reorientation temperature, T-SR, for the onset of the collinear antiferromagnetic Gamma(1) phase (x >= 0.1). Below T-SR, an antiferromagnetic resonance mode emerges and exhibits a large blueshift with decreasing temperature. However, below 50 K, this mode softens considerably, and this tendency becomes stronger with Mn doping. We provide a deeper understanding of such behaviors of the antiferromagnetic resonance modes in terms of the influence of the Mn3+ ions on the magnetocrystalline anisotropy. Our results show that terahertz time-domain spectroscopy is a useful, complementary tool in tracking magnetic transitions and probing the interaction between disparate magnetic subsystems in antiferromagnetic materials with multiple ionic species.(c) 2021 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Science > Physics > 1. Journal Articles
Items in Scholar Hub are protected by copyright, with all rights reserved, unless otherwise indicated.