Inverted-Mode Scanning Tunneling Microscopy for Atomically Precise Fabrication
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909978848133120 |
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| author | Barrera, Eduardo Thanabalasingam, Bheeshmon Addou, Rafik Allis, Damian Asani, Aly Barton, Jeremy Bernots, Tomass Blue, Brandon Bottomley, Adam Cheng, Doreen Choi, Byoung Cowie, Megan Deimert, Chris Drew, Michael Durand, Mathieu Enright, Tyler Freitas Jr., Robert A. Godfrey, Alan Groome, Ryan Guo, Si Yue Haird, Sheldon Hill, Aru Huff, Taleana Imperiale, Christian Inayeh, Alex Jeyachandra, Jerry Jobes, Mark Kennedy, Matthew Kirby, Robert J. Krykunov, Mykhaylo Lilak, Sam Ma, Hadiya Maahs, Adam Mackie, Cameron J. MacLean, Oliver Marshall, Michael McCallum, Terry Merkle, Ralph C. Morin, Mathieu Myall, Jonathan Ofitserov, Alexei Ou, Sheena Plumadore, Ryan Powell, Adam Prokopenko, Max Rodriguez, Henry Rohe, Sam Sandoval, Luis Savoie, Marc Sayed-Akhmad, Khalil Scheffel, Ben Takatani, Tait Therien, D. Alexander Van Barr, Finley Vobornik, Dusan Wong, Janice Wotton, Reid Yamachika, Ryan Yu, Cristina Taucer, Marco |
| author_facet | Barrera, Eduardo Thanabalasingam, Bheeshmon Addou, Rafik Allis, Damian Asani, Aly Barton, Jeremy Bernots, Tomass Blue, Brandon Bottomley, Adam Cheng, Doreen Choi, Byoung Cowie, Megan Deimert, Chris Drew, Michael Durand, Mathieu Enright, Tyler Freitas Jr., Robert A. Godfrey, Alan Groome, Ryan Guo, Si Yue Haird, Sheldon Hill, Aru Huff, Taleana Imperiale, Christian Inayeh, Alex Jeyachandra, Jerry Jobes, Mark Kennedy, Matthew Kirby, Robert J. Krykunov, Mykhaylo Lilak, Sam Ma, Hadiya Maahs, Adam Mackie, Cameron J. MacLean, Oliver Marshall, Michael McCallum, Terry Merkle, Ralph C. Morin, Mathieu Myall, Jonathan Ofitserov, Alexei Ou, Sheena Plumadore, Ryan Powell, Adam Prokopenko, Max Rodriguez, Henry Rohe, Sam Sandoval, Luis Savoie, Marc Sayed-Akhmad, Khalil Scheffel, Ben Takatani, Tait Therien, D. Alexander Van Barr, Finley Vobornik, Dusan Wong, Janice Wotton, Reid Yamachika, Ryan Yu, Cristina Taucer, Marco |
| contents | Scanning Tunneling Microscopy (STM) enables fabrication of atomically precise structures with unique properties and growing technological potential. However, reproducible manipulation of covalently bonded atoms requires control over the atomic configuration of both sample and probe - a longstanding challenge in STM. Here, we introduce inverted-mode STM, an approach that enables mechanically controlled chemical reactions for atomically precise fabrication. Tailored molecules on a Si(100) surface image the probe apex, and the usual challenge of understanding the probe structure is effectively solved. The molecules can also react with the probe, with the two sides of the tunnel junction acting as reagents positioned with sub-angstrom precision. This allows abstraction or donation of atoms from or to the probe apex. We demonstrate this by using a novel alkynyl-terminated molecule to reproducibly abstract hydrogen atoms from the probe. The approach is expected to extend to other elements and moieties, opening a new avenue for scalable atomically precise fabrication. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_24431 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Inverted-Mode Scanning Tunneling Microscopy for Atomically Precise Fabrication Barrera, Eduardo Thanabalasingam, Bheeshmon Addou, Rafik Allis, Damian Asani, Aly Barton, Jeremy Bernots, Tomass Blue, Brandon Bottomley, Adam Cheng, Doreen Choi, Byoung Cowie, Megan Deimert, Chris Drew, Michael Durand, Mathieu Enright, Tyler Freitas Jr., Robert A. Godfrey, Alan Groome, Ryan Guo, Si Yue Haird, Sheldon Hill, Aru Huff, Taleana Imperiale, Christian Inayeh, Alex Jeyachandra, Jerry Jobes, Mark Kennedy, Matthew Kirby, Robert J. Krykunov, Mykhaylo Lilak, Sam Ma, Hadiya Maahs, Adam Mackie, Cameron J. MacLean, Oliver Marshall, Michael McCallum, Terry Merkle, Ralph C. Morin, Mathieu Myall, Jonathan Ofitserov, Alexei Ou, Sheena Plumadore, Ryan Powell, Adam Prokopenko, Max Rodriguez, Henry Rohe, Sam Sandoval, Luis Savoie, Marc Sayed-Akhmad, Khalil Scheffel, Ben Takatani, Tait Therien, D. Alexander Van Barr, Finley Vobornik, Dusan Wong, Janice Wotton, Reid Yamachika, Ryan Yu, Cristina Taucer, Marco Mesoscale and Nanoscale Physics Scanning Tunneling Microscopy (STM) enables fabrication of atomically precise structures with unique properties and growing technological potential. However, reproducible manipulation of covalently bonded atoms requires control over the atomic configuration of both sample and probe - a longstanding challenge in STM. Here, we introduce inverted-mode STM, an approach that enables mechanically controlled chemical reactions for atomically precise fabrication. Tailored molecules on a Si(100) surface image the probe apex, and the usual challenge of understanding the probe structure is effectively solved. The molecules can also react with the probe, with the two sides of the tunnel junction acting as reagents positioned with sub-angstrom precision. This allows abstraction or donation of atoms from or to the probe apex. We demonstrate this by using a novel alkynyl-terminated molecule to reproducibly abstract hydrogen atoms from the probe. The approach is expected to extend to other elements and moieties, opening a new avenue for scalable atomically precise fabrication. |
| title | Inverted-Mode Scanning Tunneling Microscopy for Atomically Precise Fabrication |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2512.24431 |