High-order harmonics and the reverse of the squaring up process in the triangular-lattice magnet HoPdAl4Ge2
文献类型：期刊论文
| 作者 | Gao, Fei1,2; Ren, Weijun1,2; Wang, Chin-Wei3; Yano, S.3; Calder, Stuart4; Zhang, Qiang4; Wu, Hengheng1,2; An, Meng1,2; Jing, Yanpei1,2; Li, Bing1,2 |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2024-04-05 |
| 卷号 | 109期号:13页码:13 |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.109.134407 |
| 通讯作者 | Ren, Weijun(wjren@imr.ac.cn) |
| 英文摘要 | We uncover high-order harmonics and the reverse of the squaring-up process, in terms of analyzing the evolution of magnetic orders in a centrosymmetric layered triangular-lattice magnet HoPdAl4Ge2, based on a detailed study of the crystal structure, magnetic susceptibility, magnetization, heat capacity, and magnetic structure. Temperature dependencies of magnetic susceptibility and heat capacity show two magnetic transitions at T-N = 10.5 K and T-t = 5.5K. Below T-N, Ho3+ spins order antiferromagnetically as a transverse spin-density wave with the propagation vector k(1) = (0 0 1.5 - delta) with delta approximate to 0.18. Upon further cooling through T-t, the high-order harmonics with k(n) = (0 0 1.5 - n delta), n = 3, 5, 7 develop, suggesting a squaring-up process. It is surprising that the squaring-up process does not continue down to 0 K but reverses the trend below 3 K. Magnetic-field-induced metastable transitions were observed in M(H) curves with the fields applied both parallel and perpendicular to the triangular-lattice plane. Neutron-diffraction results suggest that the magnetization process in HoPdAl4Ge2 involves the conversion of k(n) = (0 0 1.5 - n delta) with n = 1, 3, 5, 7, to a ferromagnetic k(F) = (0 0 0) component. It is worth noting that the already weak seventh harmonic magnetic peak is enhanced by applying a small magnetic field in the ab plane at 1.5 K or warming up to 3 K, accompanied by a slight decrease of delta. |
| 资助项目 | Ministry of Science and Technology of China[2020YFA0406002] ; Ministry of Science and Technology of China[2021YFB3501201] ; National Natural Science Foundation of China[52071323] ; DOE Office of Sci-ence User Facility |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001234807400002 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | Ministry of Science and Technology of China ; National Natural Science Foundation of China ; DOE Office of Sci-ence User Facility |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Ren, Weijun |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Natl Synchrotron Radiat Res Ctr, Hsinchu, Taiwan 4.Neutron Sci Div, Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA |
| 推荐引用方式 GB/T 7714 | Gao, Fei,Ren, Weijun,Wang, Chin-Wei,et al. High-order harmonics and the reverse of the squaring up process in the triangular-lattice magnet HoPdAl4Ge2[J]. PHYSICAL REVIEW B,2024,109(13):13. |
| APA | Gao, Fei.,Ren, Weijun.,Wang, Chin-Wei.,Yano, S..,Calder, Stuart.,...&Zhang, Zhidong.(2024).High-order harmonics and the reverse of the squaring up process in the triangular-lattice magnet HoPdAl4Ge2.PHYSICAL REVIEW B,109(13),13. |
| MLA | Gao, Fei,et al."High-order harmonics and the reverse of the squaring up process in the triangular-lattice magnet HoPdAl4Ge2".PHYSICAL REVIEW B 109.13(2024):13. |
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来源：金属研究所
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