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Automated extraction of single H atoms with STM: tip state dependency

Møller, Morten; Jarvis, Samuel Paul; Guérinet, Laurent; Sharp, Peter; Woolley, Richard; Rahe, Philipp; Moriarty, Philip

Authors

Morten Møller

Samuel Paul Jarvis

Laurent Guérinet

Peter Sharp

Richard Woolley

Philipp Rahe

Philip Moriarty



Abstract

The atomistic structure of the tip apex plays a crucial role in performing reliable atomic-scale surface and adsorbate manipulation using scanning probe techniques. We have developed an automated extraction routine for controlled removal of single hydrogen atoms from the H:Si(100) surface. The set of atomic extraction protocols detect a variety of desorption events during scanning tunneling microscope (STM)-induced modification of the hydrogen-passivated surface. The influence of the tip state on the probability for hydrogen removal was examined by comparing the desorption efficiency for various classifications of STM topographs (rows, dimers, atoms, etc). We find that dimer-row-resolving tip apices extract hydrogen atoms most readily and reliably (and with least spurious desorption), while tip states which provide atomic resolution counter-intuitively have a lower probability for single H atom removal.

Journal Article Type Article
Journal Nanotechnology
Print ISSN 0957-4484
Electronic ISSN 1361-6528
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 28
Issue 7
APA6 Citation Møller, M., Jarvis, S. P., Guérinet, L., Sharp, P., Woolley, R., Rahe, P., & Moriarty, P. (in press). Automated extraction of single H atoms with STM: tip state dependency. Nanotechnology, 28(7), https://doi.org/10.1088/1361-6528/28/7/075302
DOI https://doi.org/10.1088/1361-6528/28/7/075302
Publisher URL http://iopscience.iop.org/article/10.1088/1361-6528/28/7/075302/meta
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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