Details
| Original language | English |
|---|---|
| Article number | 106101 |
| Journal | Physical review letters |
| Volume | 126 |
| Issue number | 10 |
| Publication status | Published - 10 Mar 2021 |
Abstract
One-dimensional wires are known to be inherently unstable at finite temperature. Here, we show that long-range order of atomic Au double chains adsorbed on a Si(553) surface is not only stabilized by interaction with the substrate, but spontaneous self-healing of structural defects is actually enforced by the adsorption of atomic species such as Au or H. This is true even for random adsorbate distribution. Combining atomistic models within density functional theory with low energy electron diffraction and high-resolution electron energy loss spectroscopy, we demonstrate that this apparently counterintuitive behavior is mainly caused by adsorption-induced band filling of modified surface bands, i.e., by the strong electronic correlation throughout the whole terrace. Although adsorption preferably occurs at the step edge, it enhances the dimerization and the stiffness of the Au dimers. Thus, the intertwinement of quasi-1D properties with delocalized 2D effects enforces the atomic wire order.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical review letters, Vol. 126, No. 10, 106101, 10.03.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Enforced Long-Range Order in 1D Wires by Coupling to Higher Dimensions
AU - Mamiyev, Zamin
AU - Fink, Christa
AU - Holtgrewe, Kris
AU - Pfnur, Herbert
AU - Sanna, Simone
N1 - Funding Information: We gratefully acknowledge financial support from the Deutsche Forschungsgemeinschaft (research unit FOR1700, Projects No. SA 1948/1-2 and No. TE 386/10-2) and Niedersächsisches Ministerium für Wissenschaft und Kultur through the graduate school “contacts in nanosystems.” Computational resources are provided by the HPC Core Facility and the HRZ of the Justus-Liebig-Universität Gießen, the TU Darmstadt and the Höchstleistungrechenzentrum Stuttgart (HLRS).
PY - 2021/3/10
Y1 - 2021/3/10
N2 - One-dimensional wires are known to be inherently unstable at finite temperature. Here, we show that long-range order of atomic Au double chains adsorbed on a Si(553) surface is not only stabilized by interaction with the substrate, but spontaneous self-healing of structural defects is actually enforced by the adsorption of atomic species such as Au or H. This is true even for random adsorbate distribution. Combining atomistic models within density functional theory with low energy electron diffraction and high-resolution electron energy loss spectroscopy, we demonstrate that this apparently counterintuitive behavior is mainly caused by adsorption-induced band filling of modified surface bands, i.e., by the strong electronic correlation throughout the whole terrace. Although adsorption preferably occurs at the step edge, it enhances the dimerization and the stiffness of the Au dimers. Thus, the intertwinement of quasi-1D properties with delocalized 2D effects enforces the atomic wire order.
AB - One-dimensional wires are known to be inherently unstable at finite temperature. Here, we show that long-range order of atomic Au double chains adsorbed on a Si(553) surface is not only stabilized by interaction with the substrate, but spontaneous self-healing of structural defects is actually enforced by the adsorption of atomic species such as Au or H. This is true even for random adsorbate distribution. Combining atomistic models within density functional theory with low energy electron diffraction and high-resolution electron energy loss spectroscopy, we demonstrate that this apparently counterintuitive behavior is mainly caused by adsorption-induced band filling of modified surface bands, i.e., by the strong electronic correlation throughout the whole terrace. Although adsorption preferably occurs at the step edge, it enhances the dimerization and the stiffness of the Au dimers. Thus, the intertwinement of quasi-1D properties with delocalized 2D effects enforces the atomic wire order.
UR - http://www.scopus.com/inward/record.url?scp=85103121837&partnerID=8YFLogxK
U2 - 10.1103/physrevlett.126.106101
DO - 10.1103/physrevlett.126.106101
M3 - Article
C2 - 33784116
AN - SCOPUS:85103121837
VL - 126
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 10
M1 - 106101
ER -