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Graphene at the Edge: Stability and Dynamics.

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Title: Graphene at the Edge: Stability and Dynamics.
Authors: Girit, Çağlar Ö., Meyer, Jannik C., Erni, Rolf, Rossell, Marta D., Kisielowski, C., Li Yang, Cheol-Hwan Park, Crommie, M. F., Cohen, Marvin L., Louie, Steven G., Zettl, A.
Source: Science (pre-March 2025). 3/27/2009, Vol. 323 Issue 5922, p1705-1708. 4p.
Subjects: Graphite, Surfaces (Technology), Crystallography, Graphene, Transmission electron microscopy, Electron beams, Atomic structure
Abstract: Although the physics of materials at surfaces and edges has been extensively studied, the movement of individual atoms at an isolated edge has not been directly observed in real time. With a transmission electron aberration-corrected microscope capable of simultaneous atomic spatial resolution and 1-second temporal resolution, we produced movies of the dynamics of carbon atoms at the edge of a hole in a suspended, single atomic layer of graphene. The rearrangement of bonds and beam-induced ejection of carbon atoms are recorded as the hole grows. We investigated the mechanism of edge reconstruction and demonstrated the stability of the "zigzag" edge configuration. This study of an ideal low-dimensional interface, a hole in graphene, exhibits the complex behavior of atoms at a boundary. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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PubType: Academic Journal
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  Data: Graphene at the Edge: Stability and Dynamics.
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  Data: <searchLink fieldCode="AR" term="%22Girit%2C+Çağlar+Ö%2E%22">Girit, Çağlar Ö.</searchLink><br /><searchLink fieldCode="AR" term="%22Meyer%2C+Jannik+C%2E%22">Meyer, Jannik C.</searchLink><br /><searchLink fieldCode="AR" term="%22Erni%2C+Rolf%22">Erni, Rolf</searchLink><br /><searchLink fieldCode="AR" term="%22Rossell%2C+Marta+D%2E%22">Rossell, Marta D.</searchLink><br /><searchLink fieldCode="AR" term="%22Kisielowski%2C+C%2E%22">Kisielowski, C.</searchLink><br /><searchLink fieldCode="AR" term="%22Li+Yang%22">Li Yang</searchLink><br /><searchLink fieldCode="AR" term="%22Cheol-Hwan+Park%22">Cheol-Hwan Park</searchLink><br /><searchLink fieldCode="AR" term="%22Crommie%2C+M%2E+F%2E%22">Crommie, M. F.</searchLink><br /><searchLink fieldCode="AR" term="%22Cohen%2C+Marvin+L%2E%22">Cohen, Marvin L.</searchLink><br /><searchLink fieldCode="AR" term="%22Louie%2C+Steven+G%2E%22">Louie, Steven G.</searchLink><br /><searchLink fieldCode="AR" term="%22Zettl%2C+A%2E%22">Zettl, A.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 3/27/2009, Vol. 323 Issue 5922, p1705-1708. 4p.
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  Data: <searchLink fieldCode="DE" term="%22Graphite%22">Graphite</searchLink><br /><searchLink fieldCode="DE" term="%22Surfaces+%28Technology%29%22">Surfaces (Technology)</searchLink><br /><searchLink fieldCode="DE" term="%22Crystallography%22">Crystallography</searchLink><br /><searchLink fieldCode="DE" term="%22Graphene%22">Graphene</searchLink><br /><searchLink fieldCode="DE" term="%22Transmission+electron+microscopy%22">Transmission electron microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+beams%22">Electron beams</searchLink><br /><searchLink fieldCode="DE" term="%22Atomic+structure%22">Atomic structure</searchLink>
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  Data: Although the physics of materials at surfaces and edges has been extensively studied, the movement of individual atoms at an isolated edge has not been directly observed in real time. With a transmission electron aberration-corrected microscope capable of simultaneous atomic spatial resolution and 1-second temporal resolution, we produced movies of the dynamics of carbon atoms at the edge of a hole in a suspended, single atomic layer of graphene. The rearrangement of bonds and beam-induced ejection of carbon atoms are recorded as the hole grows. We investigated the mechanism of edge reconstruction and demonstrated the stability of the "zigzag" edge configuration. This study of an ideal low-dimensional interface, a hole in graphene, exhibits the complex behavior of atoms at a boundary. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=37706657
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      – SubjectFull: Atomic structure
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              Text: 3/27/2009
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