Nanotwin-Induced Ferrimagnetism in an Antiferromagnetic Cr2O3 Thin Film on the SrTiO3 Substrate

doi:10.1021/acsnano.4c12839

IMR OpenIR

	Nanotwin-Induced Ferrimagnetism in an Antiferromagnetic Cr₂O₃ Thin Film on the SrTiO₃ Substrate
	Li, Xiang 1,2; Jiang, Yixiao 1,2; Tian, Min 3; Xiong, Ting 3; Yao, Tingting 1,2; Yan, Xuexi 1,2; Tao, Ang 1,2; Yang, Zhiqing 3; Ye, Hengqiang 3; Ma, Xiu-Liang 4,5; Chen, Chunlin 1,2
通讯作者	Yao, Tingting(ttyao11s@imr.ac.cn) ; Chen, Chunlin(clchen@imr.ac.cn)
	2025-01-07
发表期刊	ACS NANO
ISSN	1936-0851
卷号	19 期号:2 页码:2371-2378
摘要	Nanotwinned materials have recently attracted intense interest since they often exhibit excellent mechanical properties that are far superior to those of the corresponding single crystals. However, how nanotwinned structures affect the physical properties of functional materials remains almost unexplored. In this study, we demonstrate ferrimagnetism in a nanotwinned antiferromagnetic Cr2O3 thin film. The Cr2O3 thin film grown on the SrTiO3 substrate comprises high-density nanotwins and exhibits an obvious room-temperature ferrimagnetic property, though the bulk Cr2O3 is intrinsically antiferromagnetic. Aberration-corrected transmission electron microscopy investigations reveal that the twin boundaries (TBs) of Cr2O3 are stoichiometric and have two types of atomic structures (i.e., denoted by type I and type II). First-principles calculations suggest that the type I TB exhibits an antiferromagnetic nature without a net magnetic moment, while the type II TB is ferrimagnetic and has a net magnetic moment of 3.0 mu(B)/f.u. These findings suggest that nanotwins in functional materials can generate physical properties distinct from those of single crystals, thereby providing an efficient strategy for material design and performance control.
关键词	nanotwinned boundary ferrimagnetism Cr2O3 antiferromagnet first-principlescalculations
资助者	Ji Hua Laboratory ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Ji Hua Laboratory Project ; Guangdong Major Project of Basic Research
DOI	10.1021/acsnano.4c12839
收录类别	SCI
语种	英语
资助项目	Ji Hua Laboratory[52125101] ; Ji Hua Laboratory[52271015] ; Ji Hua Laboratory[52401026] ; National Natural Science Foundation of China[GZC20232748] ; National Natural Science Foundation of China[2024M753303] ; China Postdoctoral Science Foundation[X210141TL210] ; Ji Hua Laboratory Project[2021B0301030003] ; Guangdong Major Project of Basic Research
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:001392667100001
出版者	AMER CHEMICAL SOC
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/180774
专题	中国科学院金属研究所
通讯作者	Yao, Tingting; Chen, Chunlin
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.Jihua Lab, Foshan 528251, Peoples R China 4.Songshan Lake Mat Lab, Bay Area Ctr Electron Microscopy, Dongguan 523808, Guangdong, Peoples R China 5.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiang,Jiang, Yixiao,Tian, Min,et al. Nanotwin-Induced Ferrimagnetism in an Antiferromagnetic Cr₂O₃ Thin Film on the SrTiO₃ Substrate[J]. ACS NANO,2025,19(2):2371-2378.
APA	Li, Xiang.,Jiang, Yixiao.,Tian, Min.,Xiong, Ting.,Yao, Tingting.,...&Chen, Chunlin.(2025).Nanotwin-Induced Ferrimagnetism in an Antiferromagnetic Cr₂O₃ Thin Film on the SrTiO₃ Substrate.ACS NANO,19(2),2371-2378.
MLA	Li, Xiang,et al."Nanotwin-Induced Ferrimagnetism in an Antiferromagnetic Cr₂O₃ Thin Film on the SrTiO₃ Substrate".ACS NANO 19.2(2025):2371-2378.