Controlling selective nucleation and growth of dysprosium islands on graphene by metal intercalation
Abstract
We report metal intercalation is an effective method to modify the physical and chemical properties of low-dimensional systems such as epitaxial graphene. Here, we show that the nucleation and growth of metal nanostructures on epitaxial graphene on SiC(0001) can be dramatically changed by metal intercalation. Using scanning tunneling microscopy experiments, we demonstrate that dysprosium (Dy) metal islands are selectively nucleated on the area with Dy intercalation under both graphene and carbon buffer layers, while the adjacent area with only buffer layer intercalated remains relatively bare. Using first-principles calculations based on density functional theory, we show that adsorption of Dy adatom on the preferred nucleation area is energetically more favorable than on other areas. Moreover, changes in the electronic structure and the interlayer spacing upon Dy intercalation obtained from our calculations are also consistent with experimental observations. Our results indicate that metal intercalation is a promising way to manipulate the interaction between graphene and deposited adatoms.
- Authors:
-
- Ames Lab., and Iowa State University, Ames, IA (United States)
- Publication Date:
- Research Org.:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
- OSTI Identifier:
- 1889449
- Report Number(s):
- IS-J-10,891
Journal ID: ISSN 2475-9953; TRN: US2309958
- Grant/Contract Number:
- AC02-07CH11358
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Materials
- Additional Journal Information:
- Journal Volume: 6; Journal Issue: 9; Journal ID: ISSN 2475-9953
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; growth; nucleation on surfaces; surface and interfacial phenomena; 2-dimensional systems; graphene; interfaces; density functional theory; first-principles calculations; scanning tunneling spectroscopy
Citation Formats
Kim, Minsung, Hupalo, Myron, Tringides, Michael C., Thiel, Patricia A., Ho, Kai-Ming, and Wang, Cai-Zhuang. Controlling selective nucleation and growth of dysprosium islands on graphene by metal intercalation. United States: N. p., 2022.
Web. doi:10.1103/physrevmaterials.6.094003.
Kim, Minsung, Hupalo, Myron, Tringides, Michael C., Thiel, Patricia A., Ho, Kai-Ming, & Wang, Cai-Zhuang. Controlling selective nucleation and growth of dysprosium islands on graphene by metal intercalation. United States. https://doi.org/10.1103/physrevmaterials.6.094003
Kim, Minsung, Hupalo, Myron, Tringides, Michael C., Thiel, Patricia A., Ho, Kai-Ming, and Wang, Cai-Zhuang. Thu .
"Controlling selective nucleation and growth of dysprosium islands on graphene by metal intercalation". United States. https://doi.org/10.1103/physrevmaterials.6.094003. https://www.osti.gov/servlets/purl/1889449.
@article{osti_1889449,
title = {Controlling selective nucleation and growth of dysprosium islands on graphene by metal intercalation},
author = {Kim, Minsung and Hupalo, Myron and Tringides, Michael C. and Thiel, Patricia A. and Ho, Kai-Ming and Wang, Cai-Zhuang},
abstractNote = {We report metal intercalation is an effective method to modify the physical and chemical properties of low-dimensional systems such as epitaxial graphene. Here, we show that the nucleation and growth of metal nanostructures on epitaxial graphene on SiC(0001) can be dramatically changed by metal intercalation. Using scanning tunneling microscopy experiments, we demonstrate that dysprosium (Dy) metal islands are selectively nucleated on the area with Dy intercalation under both graphene and carbon buffer layers, while the adjacent area with only buffer layer intercalated remains relatively bare. Using first-principles calculations based on density functional theory, we show that adsorption of Dy adatom on the preferred nucleation area is energetically more favorable than on other areas. Moreover, changes in the electronic structure and the interlayer spacing upon Dy intercalation obtained from our calculations are also consistent with experimental observations. Our results indicate that metal intercalation is a promising way to manipulate the interaction between graphene and deposited adatoms.},
doi = {10.1103/physrevmaterials.6.094003},
journal = {Physical Review Materials},
number = 9,
volume = 6,
place = {United States},
year = {Thu Sep 08 00:00:00 EDT 2022},
month = {Thu Sep 08 00:00:00 EDT 2022}
}
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