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Journal Article

Resolving atomic diffusion in Ru(0001)-O(2×2) with spiral high-speed scanning tunneling microscopy

MPS-Authors
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Gura,  Leonard
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Yang,  Zechao
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons268193

Kalass,  Florian
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons268199

Brinker,  Matthias
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21628

Heyde,  Markus
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Freund,  Hans-Joachim
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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PhysRevB.105.035411.pdf
(Publisher version), 2MB

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Citation

Gura, L., Yang, Z., Paier, J., Kalass, F., Brinker, M., Heyde, M., et al. (2022). Resolving atomic diffusion in Ru(0001)-O(2×2) with spiral high-speed scanning tunneling microscopy. Physical Review B, 105(3): 035411. doi:10.1103/PhysRevB.105.035411.


Cite as: https://hdl.handle.net/21.11116/0000-0009-E8D8-E
Abstract
An intermediate state in atomic diffusion processes in the O(2×2) layer on Ru(0001) is resolved with spiral high-speed scanning tunneling microscopy (STM). The diffusion of atomic oxygen in the adlayer has been studied by density functional theory and STM. Transition state theory proposes a migration pathway for the diffusion in the oxygen adlayer. With spiral scan geometries—a new approach to high-speed STM—the oxygen vacancy mobility on the highly covered Ru(0001) surface is determined to be in the range of 0.1 to 1 Hz. Experimental evidence for the intermediate state along the oxygen diffusion pathway is provided in real space and real time.