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Free-standing Monatomic Thick Two-dimensional Gold
Wang, Xuelu; Wang, Chunyang; Chen, Chunjin; Duan, Huichao; Du, Kui
2019-07-01
Source PublicationNANO LETTERS
ISSN1530-6984
Volume19Issue:7Pages:4560-4566
AbstractMonolayer metal membranes have attracted research attention owing to their fascinating physical properties. Unlike layered materials with weak interlayer van der Waals bonding, metallic monolayer membranes are difficult to exfoliate due to strong metallic bonding between layers. Here, we fabricate free-standing monatomic thick Au membranes and nanoribbons framed in bulk crystals using in situ dealloying inside transmission electron microscope. The Au membranes are robust under high energy electron beam. Monatomic-thick nanoribbons with a minimal width of 0.6 nm are observed. First-principles calculations reveal that zigzag-edged nanoribbons are ferromagnetic with magnetic moments ranging 0.38-0.51 mu B per unit-cell for a width less than 0.9 nm. In addition, a linear relationship between the bond length and the coordination number of atoms is directly investigated using atomic resolution images of monolayer and bilayer Au membranes. This work provides a pathway for direct fabrication of metal membranes and nanoribbons and to achieve novel physical properties.
Keyword2D materials transmission electron microscopy electronic devices dealloying coordination number
Indexed BySCI
Language英语
WOS IDWOS:000475533900044
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80939
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Wang, Xuelu,Wang, Chunyang,Chen, Chunjin,et al. Free-standing Monatomic Thick Two-dimensional Gold[J]. NANO LETTERS,2019,19(7):4560-4566.
APA Wang, Xuelu,Wang, Chunyang,Chen, Chunjin,Duan, Huichao,&Du, Kui.(2019).Free-standing Monatomic Thick Two-dimensional Gold.NANO LETTERS,19(7),4560-4566.
MLA Wang, Xuelu,et al."Free-standing Monatomic Thick Two-dimensional Gold".NANO LETTERS 19.7(2019):4560-4566.
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