Terahertz spectroscopy study of doping and magnetic field induced effects on spin reorientation in Ho1-xYxFeO3 single crystals
文献类型：期刊论文
| 作者 | Ren, Z; Cheng, L; Guretskii, S; Liubochko, N; Li, JT; Shang, JM; Barilo, S; Wu, AH; Kalashnikova, A; Ma, ZW |
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2020-10-20 |
| 期号 | 20 |
| ISSN号 | 1000-3290 |
| DOI | 10.7498/aps.69.20201518 |
| 文献子类 | Article |
| 英文摘要 | In this paper, the effects of magnetic field and nonmagnetic Y3+ doping on spin state and spin reorientation in HoFeO3 single crystal are systematically studied by the self-developed terahertz time-domain spectroscopy (THz-TDS) under magnetic field. By doping nonmagnetic Y3+, we find that the spin reorientation temperature range decreases. Meanwhile, we also find the type of spin reorientation of HoFeO3 does not change with Y3+ doping, indicating that the Y3+ doping can exchange the interaction energy of Ho3+-Fe3+ without introducing any new magnetic structure. Moreover, the resonance frequency of quasi-ferromagnetic mode (q-FM) decreases with temperature increasing in the low temperature range, while the resonance frequency of quasiantiferromagnetic mode (q-AFM) increases with temperature increasing in the high temperature range in Ho1-xYxFeO3 single crystals. With the external magnetic field (H-DC) applied along the (110) axis, on the one hand the magnetic field can not only tune the resonant frequency of q-FM but also induce the spin reorientation in Ho1-xYxFeO3 single crystals, and on the other hand this magnetic field induced spin reorientation phenomenon can happen more easily if the temperature approaches to the intrinsic spin reorientation temperature range of the single crystals. Besides, the critical magnetic field induced spin reorientation increases with the doping of Y3+ increasing. Our research shows that THz spectroscopy data can be used to detect the doping concentration of Y3+ ions in HoFeO3; in addition, Y3+ doping can make the spin state in HoFeO3 crystal more stable and not easily affected by external magnetic fields. We anticipate that the role of doping and magnetic field in spin reorientation transition will trigger great interest in understanding the mechanism of the spin exchange interaction and the mechanism of external field tuning effect in the vast family of rare earth orthoferrites. |
| WOS关键词 | GROWTH |
| WOS研究方向 | Physics |
| 语种 | 中文 |
| 出版者 | CHINESE PHYSICAL SOC |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27676]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Ren, Z,Cheng, L,Guretskii, S,et al. Terahertz spectroscopy study of doping and magnetic field induced effects on spin reorientation in Ho1-xYxFeO3 single crystals[J]. ACTA PHYSICA SINICA,2020(20). |
| APA | Ren, Z.,Cheng, L.,Guretskii, S.,Liubochko, N.,Li, JT.,...&Sheng, ZG.(2020).Terahertz spectroscopy study of doping and magnetic field induced effects on spin reorientation in Ho1-xYxFeO3 single crystals.ACTA PHYSICA SINICA(20). |
| MLA | Ren, Z,et al."Terahertz spectroscopy study of doping and magnetic field induced effects on spin reorientation in Ho1-xYxFeO3 single crystals".ACTA PHYSICA SINICA .20(2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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