High-order harmonics and the reverse of the squaring up process in the triangular-lattice magnet HoPdAl<sub>4</sub>Ge<sub>2</sub>

doi:10.1103/PhysRevB.109.134407

IMR OpenIR

	High-order harmonics and the reverse of the squaring up process in the triangular-lattice magnet HoPdAl₄Ge₂
	Gao, Fei 1,2; Ren, Weijun 1,2; Wang, Chin-Wei 3; Yano, S.3; Calder, Stuart 4; Zhang, Qiang 4; Wu, Hengheng 1,2; An, Meng 1,2; Jing, Yanpei 1,2; Li, Bing 1,2; Zhang, Zhidong 1,2
通讯作者	Ren, Weijun(wjren@imr.ac.cn)
	2024-04-05
发表期刊	PHYSICAL REVIEW B
ISSN	2469-9950
卷号	109 期号:13 页码:13
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.
资助者	Ministry of Science and Technology of China ; National Natural Science Foundation of China ; DOE Office of Sci-ence User Facility
DOI	10.1103/PhysRevB.109.134407
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001234807400002
出版者	AMER PHYSICAL SOC
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/186705
专题	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.