Orbital-symmetry effects on magnetic exchange in open-shell nanographenes

doi:10.1038/s41467-023-40542-0

	Orbital-symmetry effects on magnetic exchange in open-shell nanographenes
	Du, Qingyang1 ; Su, Xuelei1 ; Liu, Yufeng 2; Jiang, Yashi 2; Li, Can 2; Yan, KaKing1 ; Ortiz, Ricardo 3; Frederiksen, Thomas 3,4; Wang, Shiyong 2,5; Yu, Ping1
	2023-08-09
发表期刊	NATURE COMMUNICATIONS (IF:14.7[JCR-2023],16.1[5-Year])
EISSN	2041-1723
卷号	14 期号:1
发表状态	已发表
DOI	10.1038/s41467-023-40542-0
摘要	["Nanographenes, as their name suggests, are small sections of graphene. They offer a diverse array of magnetic behaviors; for example, sublattice imbalances in the nanographene lead to unpaired spins. Here, Du et al uncover a large variation in the exchange energy in nanographenes, due to changes in the frontier orbital symmetries.","Open-shell nanographenes appear as promising candidates for future applications in spintronics and quantum technologies. A critical aspect to realize this potential is to design and control the magnetic exchange. Here, we reveal the effects of frontier orbital symmetries on the magnetic coupling in diradical nanographenes through scanning probe microscope measurements and different levels of theoretical calculations. In these open-shell nanographenes, the exchange energy exhibits a remarkable variation between 20 and 160 meV. Theoretical calculations reveal that frontier orbital symmetries play a key role in affecting the magnetic coupling on such a large scale. Moreover, a triradical nanographene is demonstrated for investigating the magnetic interaction among three unpaired electrons with unequal magnetic exchange, in agreement with Heisenberg spin model calculations. Our results provide insights into both theoretical design and experimental realization of nanographene materials with different exchange interactions through tuning the orbital symmetry, potentially useful for realizing magnetically operable graphene-based nanomaterials."]
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收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2020YFA0309000] ; National Natural Science Foundation of China["11874258","12074247"] ; Shanghai Municipal Science and Technology Qi Ming Xing Project[20QA1405100] ; Fok Ying Tung Foundation for young researchers and SJTU[21x010200846] ; Science and Technology Commission of Shanghai Municipality[20ZR1436900] ; Postdoctoral Science Foundation of China[2021M702188] ; Spanish MCIN[PID2020-115406GB-I00] ; Basque Department of Education[PIBA-2020-1-0014] ; European Union (EU)[863098]
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001045317100007
出版者	NATURE PORTFOLIO
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/323574
专题	物质科学与技术学院物质科学与技术学院_PI研究组_于平组物质科学与技术学院_博士生物质科学与技术学院_PI研究组_甄家劲组
通讯作者	Ortiz, Ricardo; Frederiksen, Thomas; Wang, Shiyong; Yu, Ping
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.Shanghai Jiao Tong Univ, Sch Phys & Astron, Key Lab Artificial Struct & Quantum Control, Shenyang Natl Lab Mat Sci,Minist Educ, Shanghai 200240, Peoples R China 3.Donostia Int Phys Ctr DIPC, UPV, EHU, San Sebastian 20018, Spain 4.Basque Fdn Sci, IKERBASQUE, Bilbao 48013, Spain 5.Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Shanghai 200240, Peoples R China
第一作者单位	物质科学与技术学院
通讯作者单位	物质科学与技术学院
第一作者的第一单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Du, Qingyang,Su, Xuelei,Liu, Yufeng,et al. Orbital-symmetry effects on magnetic exchange in open-shell nanographenes[J]. NATURE COMMUNICATIONS,2023,14(1).
APA	Du, Qingyang.,Su, Xuelei.,Liu, Yufeng.,Jiang, Yashi.,Li, Can.,...&Yu, Ping.(2023).Orbital-symmetry effects on magnetic exchange in open-shell nanographenes.NATURE COMMUNICATIONS,14(1).
MLA	Du, Qingyang,et al."Orbital-symmetry effects on magnetic exchange in open-shell nanographenes".NATURE COMMUNICATIONS 14.1(2023).