Mechanical and Chemical Interactions in Atomically Defined Contacts

Yesilpinar, Damla; Lammers, Bertram Schulze; Timmer, Alexander; Hu, Zhixin; Ji, Wei; Amirjalayer, Saeed; Fuchs, Harald; Mönig, Harry

doi:10.1002/smll.202101637

Cited by 6 publications

(6 citation statements)

References 48 publications

(63 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, Mönig and co‐workers investigated atomically defined contacts using atomically defined probe tips. [ 58 ] AFM‐based manipulation experiments with these tips revealed fundamental atomic interactions piconewton‐level precision. Accordingly, importance of nanomechanical properties and chemical interactions at the tip–sample junctions for particular atom combinations.…”

Section: Mechanical Control and Evaluation Of Atom/molecular Level St...mentioning

confidence: 99%

Mechano‐Nanoarchitectonics: Design and Function

Ariga

2022

Small Methods

View full text Add to dashboard Cite

Mechanical stimuli have rather ambiguous and less‐specific features among various physical stimuli, but most materials exhibit a certain level of responses upon mechanical inputs. Unexplored sciences remain in mechanical responding systems as one of the frontiers of materials science. Nanoarchitectonics approaches for mechanically responding materials are discussed as mechano‐nanoarchitectonics in this review article. Recent approaches on molecular and materials systems with mechanical response capabilities are first exemplified with two viewpoints: i) mechanical control of supramolecular assemblies and materials and ii) mechanical control and evaluation of atom/molecular level structures. In the following sections, special attentions on interfacial environments for mechano‐nanoarchitectonics are emphasized. The section entitled iii) Mechanical Control of Molecular System at Dynamic Interface describes coupling of macroscopic mechanical forces and molecular‐level phenomena. Delicate mechanical forces can be applied to functional molecules embedded at the air–water interface where operation of molecular machines and tuning of molecular receptors upon macroscopic mechanical actions are discussed. Finally, the important role of the interfacial media are further extended to the control of living cells as described in the section entitled iv) Mechanical Control of Biosystems. Pioneering approaches on cell fate regulations at liquid–liquid interfaces are discussed in addition to well‐known mechanobiology.

show abstract

Section: Mechanical Control and Evaluation Of Atom/molecular Level St...mentioning

confidence: 99%

Mechano‐Nanoarchitectonics: Design and Function

Ariga

2022

Small Methods

View full text Add to dashboard Cite

show abstract

“…Here, we use single atom metal tips, trimer metal tips, single atom tips terminated by a CO molecule [23,24] and CuOx tips [25][26][27] that have all been characterized by COFI. Information on the preparation of CO terminated tips and CuOx tips can be found in [21,26], respectively.…”

Section: Scanning Probe Microscopymentioning

confidence: 99%

Evidence for temporary and local transition of sp² graphite-type to sp³ diamond-type bonding induced by the tip of an atomic force microscope

et al. 2022

View full text Add to dashboard Cite

Artificial diamond is created by exposing graphite to pressures on the order of 10\,GPa and temperatures of about 2000\,K. Here, we provide evidence that the pressure exerted by the tip of an atomic force microscope onto graphene over the carbon buffer layer of silicon carbide can lead to a temporary transition of graphite to diamond on the atomic scale. We perform atomic force microscopy with CO terminated tips and copper oxide (CuOx) tips to image graphene and to induce the structural transition. A local transition induced by the force of the tip is accompanied by local rehybridization from an sp$^2$-bonded to an sp$^3$-bonded local structure. Density functional theory (DFT) predicts that a repulsive threshold of $\approx13$\,nN, followed by a force reduction by $\approx4$\,nN is overcome when inducing the graphite-diamond transition. The experimental observation of the third harmonic with a magnitude of about 200\,fm fits well to overcoming a force barrier of $F_{barrier}\approx 5$\,nN, followed by a force reduction by $-F_{barrier}$ and an upswing by $F_{barrier}$ for decreasing distances. Experimental evidence for this transition is provided by the emergence of third harmonics in the cantilever oscillation when the laterally flexible CO terminated tip exerts a large repulsive force. Probing the sample with rigid CuOx tips in the strong repulisive regime shows a strong difference in the yielding of the A versus B sites to the pressure of the tip. The large repulsive overall force of $\approx 10$\,nN is only compatible with the experimental data if one assumes that the repulsive force acting on the tip when inducing the transition is compensated by a heavily increased van-der-Waals attraction of the tip due to form fitting of tip and sample by local indentation. The experiment also shows that atomic force microscopy allows to perform high pressure physics on the atomic scale.

show abstract

“…Molecular manipulation by a probe tip [42][43][44][45][46][47][48][49][50][51][52][53][54] is representative of such research and is an ideal setting to investigate friction. This process is an essential technique for creating fascinating nanostructures on surfaces [55][56][57]; thus, its elemental processes have been intensively investigated [43][44][45].…”

Section: Introductionmentioning

confidence: 99%

Energy dissipation of a carbon monoxide molecule manipulated using a metallic tip on copper surfaces

Okabayashi,

Frederiksen,

Liebig

et al. 2023

Phys. Rev. B

View full text Add to dashboard Cite

Mechanical and Chemical Interactions in Atomically Defined Contacts

Cited by 6 publications

References 48 publications

Mechano‐Nanoarchitectonics: Design and Function

Mechano‐Nanoarchitectonics: Design and Function

Evidence for temporary and local transition of sp² graphite-type to sp³ diamond-type bonding induced by the tip of an atomic force microscope

Energy dissipation of a carbon monoxide molecule manipulated using a metallic tip on copper surfaces

Contact Info

Product

Resources

About

Mechanical and Chemical Interactions in Atomically Defined Contacts

Cited by 6 publications

References 48 publications

Mechano‐Nanoarchitectonics: Design and Function

Mechano‐Nanoarchitectonics: Design and Function

Evidence for temporary and local transition of sp2 graphite-type to sp3 diamond-type bonding induced by the tip of an atomic force microscope

Energy dissipation of a carbon monoxide molecule manipulated using a metallic tip on copper surfaces

Contact Info

Product

Resources

About

Evidence for temporary and local transition of sp² graphite-type to sp³ diamond-type bonding induced by the tip of an atomic force microscope