Real-space Wigner-Seitz cells imaging of potassium on graphite via elastic atomic manipulation

Research output: Contribution to journalArticlepeer-review

Standard

Real-space Wigner-Seitz cells imaging of potassium on graphite via elastic atomic manipulation. / Yin, Feng; Koskinen, Pekka; Kulju, Sampo; Akola, Jaakko; Palmer, Richard E.

In: Scientific Reports, Vol. 5, 8276, 05.02.2015.

Research output: Contribution to journalArticlepeer-review

Harvard

APA

Vancouver

Author

Bibtex

@article{204726a81fd9439886326008bcb8a68a,
title = "Real-space Wigner-Seitz cells imaging of potassium on graphite via elastic atomic manipulation",
abstract = "Atomic manipulation in the scanning tunnelling microscopy, conventionally a tool to build nanostructures one atom at a time, is here employed to enable the atomic-scale imaging of a model low-dimensional system. Specifically, we use low-temperature STM to investigate an ultra thin film (4 atomic layers) of potassium created by epitaxial growth on a graphite substrate. The STM images display an unexpected honeycomb feature, which corresponds to a real-space visualization of the Wigner-Seitz cells of the close-packed surface K atoms. Density functional simulations indicate that this behaviour arises from the elastic, tip-induced vertical manipulation of potassium atoms during imaging, i.e. elastic atomic manipulation, and reflects the ultrasoft properties of the surface under strain. The method may be generally applicable to other soft e.g. molecular or biomolecular systems.",
keywords = "Materials science, Nanoscience and technology",
author = "Feng Yin and Pekka Koskinen and Sampo Kulju and Jaakko Akola and Palmer, {Richard E.}",
year = "2015",
month = feb,
day = "5",
doi = "10.1038/srep08276",
language = "English",
volume = "5",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",

}

RIS

TY - JOUR

T1 - Real-space Wigner-Seitz cells imaging of potassium on graphite via elastic atomic manipulation

AU - Yin, Feng

AU - Koskinen, Pekka

AU - Kulju, Sampo

AU - Akola, Jaakko

AU - Palmer, Richard E.

PY - 2015/2/5

Y1 - 2015/2/5

N2 - Atomic manipulation in the scanning tunnelling microscopy, conventionally a tool to build nanostructures one atom at a time, is here employed to enable the atomic-scale imaging of a model low-dimensional system. Specifically, we use low-temperature STM to investigate an ultra thin film (4 atomic layers) of potassium created by epitaxial growth on a graphite substrate. The STM images display an unexpected honeycomb feature, which corresponds to a real-space visualization of the Wigner-Seitz cells of the close-packed surface K atoms. Density functional simulations indicate that this behaviour arises from the elastic, tip-induced vertical manipulation of potassium atoms during imaging, i.e. elastic atomic manipulation, and reflects the ultrasoft properties of the surface under strain. The method may be generally applicable to other soft e.g. molecular or biomolecular systems.

AB - Atomic manipulation in the scanning tunnelling microscopy, conventionally a tool to build nanostructures one atom at a time, is here employed to enable the atomic-scale imaging of a model low-dimensional system. Specifically, we use low-temperature STM to investigate an ultra thin film (4 atomic layers) of potassium created by epitaxial growth on a graphite substrate. The STM images display an unexpected honeycomb feature, which corresponds to a real-space visualization of the Wigner-Seitz cells of the close-packed surface K atoms. Density functional simulations indicate that this behaviour arises from the elastic, tip-induced vertical manipulation of potassium atoms during imaging, i.e. elastic atomic manipulation, and reflects the ultrasoft properties of the surface under strain. The method may be generally applicable to other soft e.g. molecular or biomolecular systems.

KW - Materials science

KW - Nanoscience and technology

U2 - 10.1038/srep08276

DO - 10.1038/srep08276

M3 - Article

C2 - 25651973

VL - 5

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 8276

ER -