Free-standing 2D metals from binary metal alloys
Recent experiments have demonstrated the formation of free-standing Au monolayers by exposing the Au–Ag alloy to electron beam irradiation. Inspired by this discovery, we used semi-empirical effective medium theory simulations to investigate monolayer formation in 30 different binary metal alloys co...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2020-06-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0010884 |
| _version_ | 1818923193915670528 |
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| author | Janne Nevalaita Pekka Koskinen |
| author_facet | Janne Nevalaita Pekka Koskinen |
| author_sort | Janne Nevalaita |
| collection | DOAJ |
| description | Recent experiments have demonstrated the formation of free-standing Au monolayers by exposing the Au–Ag alloy to electron beam irradiation. Inspired by this discovery, we used semi-empirical effective medium theory simulations to investigate monolayer formation in 30 different binary metal alloys composed of late d-series metals such as Ni, Cu, Pd, Ag, Pt, and Au. In qualitative agreement with the experiment, we find that the beam energy required to dealloy Ag atoms from the Au–Ag alloy is smaller than the energy required to break the dealloyed Au monolayer. Our simulations suggest that a similar method could also be used to form Au monolayers from the Au–Cu alloy and Pt monolayers from Pt–Cu, Pt–Ni, and Pt–Pd alloys. |
| first_indexed | 2024-12-20T02:05:33Z |
| format | Article |
| id | doaj.art-53d8255a52f441bba581449b35e40dd9 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-20T02:05:33Z |
| publishDate | 2020-06-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-53d8255a52f441bba581449b35e40dd92022-12-21T19:57:13ZengAIP Publishing LLCAIP Advances2158-32262020-06-01106065327065327-410.1063/5.0010884Free-standing 2D metals from binary metal alloysJanne Nevalaita0Pekka Koskinen1Department of Physics, Nanoscience Center, University of Jyväskylä, 40014 Jyväskylä, FinlandDepartment of Physics, Nanoscience Center, University of Jyväskylä, 40014 Jyväskylä, FinlandRecent experiments have demonstrated the formation of free-standing Au monolayers by exposing the Au–Ag alloy to electron beam irradiation. Inspired by this discovery, we used semi-empirical effective medium theory simulations to investigate monolayer formation in 30 different binary metal alloys composed of late d-series metals such as Ni, Cu, Pd, Ag, Pt, and Au. In qualitative agreement with the experiment, we find that the beam energy required to dealloy Ag atoms from the Au–Ag alloy is smaller than the energy required to break the dealloyed Au monolayer. Our simulations suggest that a similar method could also be used to form Au monolayers from the Au–Cu alloy and Pt monolayers from Pt–Cu, Pt–Ni, and Pt–Pd alloys.http://dx.doi.org/10.1063/5.0010884 |
| spellingShingle | Janne Nevalaita Pekka Koskinen Free-standing 2D metals from binary metal alloys AIP Advances |
| title | Free-standing 2D metals from binary metal alloys |
| title_full | Free-standing 2D metals from binary metal alloys |
| title_fullStr | Free-standing 2D metals from binary metal alloys |
| title_full_unstemmed | Free-standing 2D metals from binary metal alloys |
| title_short | Free-standing 2D metals from binary metal alloys |
| title_sort | free standing 2d metals from binary metal alloys |
| url | http://dx.doi.org/10.1063/5.0010884 |
| work_keys_str_mv | AT jannenevalaita freestanding2dmetalsfrombinarymetalalloys AT pekkakoskinen freestanding2dmetalsfrombinarymetalalloys |