Topological magnons in one-dimensional ferromagnetic Su-Schrieffer-Heeger model with anisotropic interaction

doi:10.1088/1361-648X/ac99cb

	Topological magnons in one-dimensional ferromagnetic Su-Schrieffer-Heeger model with anisotropic interaction
	Wei, Peng-Tao 1,3; Ni, Jin-Yu 1,3; Zheng, Xia-Ming 1,2; Liu, Da-Yong 1,2; Zou, Liang-Jian 1
刊名	JOURNAL OF PHYSICS-CONDENSED MATTER
	2022-12-07
卷号	34
关键词	topological magnon Su-Schrieffer-Heeger (SSH) model one-dimensional (1D) ferromagnet anisotropic exchange interaction
ISSN号	0953-8984
DOI	10.1088/1361-648X/ac99cb
通讯作者	Liu, Da-Yong(dyliu@ntu.edu.cn) ; Zou, Liang-Jian(zou@theory.issp.ac.cn)
英文摘要	Topological magnons in a one-dimensional (1D) ferromagnetic Su-Schrieffer-Heeger (SSH) model with anisotropic exchange interactions are investigated. Apart from the intercellular isotropic Heisenberg interaction, the intercellular anisotropic exchange interactions, i.e. Dzyaloshinskii-Moriya interaction and pseudo-dipolar interaction, also can induce the emergence of the non-trivial phase with two degenerate in-gap edge states separately localized at the two ends of the 1D chain, while the intracellular interactions instead unfavors the topological phase. The interplay among them has synergistic effects on the topological phase transition, very different from that in the two-dimensional (2D) ferromagnet. These results demonstrate that the 1D magnons possess rich topological phase diagrams distinctly different from the electronic version of the SSH model and even the 2D magnons. Due to the low dimensional structural characteristics of this 1D topological magnonic system, the magnonic crystals can be constructed from bottom to top, which has important potential applications in the design of novel magnonic devices.
资助项目	National Sciences Foundation of China[11974354] ; National Sciences Foundation of China[11774350] ; National Sciences Foundation of China[11574315]
WOS关键词	INSULATORS
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000870857400001
资助机构	National Sciences Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/129408]
专题	中国科学院合肥物质科学研究院
通讯作者	Liu, Da-Yong; Zou, Liang-Jian
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China 2.Nantong Univ, Sch Sci, Dept Phys, Nantong 226019, Peoples R China 3.Univ Sci & Technol China, Sci Isl Branch Grad Sch, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Wei, Peng-Tao,Ni, Jin-Yu,Zheng, Xia-Ming,et al. Topological magnons in one-dimensional ferromagnetic Su-Schrieffer-Heeger model with anisotropic interaction[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2022,34.
APA	Wei, Peng-Tao,Ni, Jin-Yu,Zheng, Xia-Ming,Liu, Da-Yong,&Zou, Liang-Jian.(2022).Topological magnons in one-dimensional ferromagnetic Su-Schrieffer-Heeger model with anisotropic interaction.JOURNAL OF PHYSICS-CONDENSED MATTER,34.
MLA	Wei, Peng-Tao,et al."Topological magnons in one-dimensional ferromagnetic Su-Schrieffer-Heeger model with anisotropic interaction".JOURNAL OF PHYSICS-CONDENSED MATTER 34(2022).