English
Related papers

Related papers: Building the Chessboard-like Supramolecular Struct…

200 papers

The formation mechanisms of evaporated Pd islands on the reconstructed Au(111) $22 /times /sqrt{3}$ herringbone surface have been here studied by Scanning Tunneling Microscopy (STM) at room temperature. Atomically resolved STM images at the…

Materials Science · Physics 2009-09-22 C. S. Casari , S. Foglio , F. Siviero , A. Li Bassi , M. Passoni , C. E. Bottani

We report the results from a computational study of the self-assembly of amphiphilic di-tethered nanospheres using molecular simulation. As a function of the interaction strength and directionality of the tether-tether interactions, we…

Soft Condensed Matter · Physics 2009-07-29 Christopher R. Iacovella , Sharon C. Glotzer

Surface-assisted polymerization of molecular monomers into extended chains can be used as the seed of graphene nanoribbon (GNR) formation, resulting from a subsequent cyclo-dehydrogenation process. By means of valence-band photoemission and…

Atomic configurations of two or three Pd substituents on the Au(111) surface are investigated using the first-principles pseudopotential plane wave approach. Pd atoms are found to form second neighborhoods on PdAu(111). The Pd-d band…

Materials Science · Physics 2007-05-23 D. W. Yuan , X. G. Gong , Ruqian Wu

Single layer graphene islands with a typical diameter of several nanometers were grown on a Pt (111) substrate. Scanning tunneling microscopy (STM) analysis showed most of islands are hexagonally shaped and the zigzag-type edge predominates…

Mesoscale and Nanoscale Physics · Physics 2011-01-21 Mayu Yamamoto , Seiji Obata , Koichiro Saiki

We study numerically the dynamics of acetanilide (ACN) molecules placed on a flat surface of a multilayer hexagonal boron nitride structure. We demonstrate that the ACN molecules, being achiral in three dimensions, become chiral after being…

Mesoscale and Nanoscale Physics · Physics 2023-01-10 Alexander V. Savin , Yuri S. Kivshar

We report an example that demonstrates the clear interdependence between surface-supported reactions and molecular adsorption configurations. Two biphenyl-based molecules with two and four bromine substituents, i.e. 2,2-dibromo-biphenyl…

The oxidized Ag(111) surface has been studied by a combination of experimental and theoretical methods, scanning tunneling microscopy (STM), x-ray photoelectron spectroscopy (XPS), and density functional theory (DFT). A large variety of…

Artificial Neural Networks (ANNs) are one of the most widely employed forms of bio-inspired computation. However the current trend is for ANNs to be structurally homogeneous. Furthermore, this structural homogeneity requires the application…

Neural and Evolutionary Computing · Computer Science 2024-03-26 Andrew Walter , Shimeng Wu , Andy M. Tyrrell , Liam McDaid , Malachy McElholm , Nidhin Thandassery Sumithran , Jim Harkin , Martin A. Trefzer

Hybrid sp-sp2 structures can be efficiently obtained on metal substrates via on-surface synthesis. The choice of both the precursor and of the substrate impacts on the effectiveness of the process and the stability of the formed structures.…

Nitrogen heteroatom doping into a triangulene molecule allows tuning its magnetic state. However, the synthesis of the nitrogen-doped triangulene (aza-triangulene) has been challenging. Herein, we report the successful synthesis of…

Triangular zigzag nanographenes, such as triangulene and its pi-extended homologues, have received widespread attention as organic nanomagnets for molecular spintronics, and may serve as building blocks for high-spin networks with…

The one-dimensional reconstruction of Au/Ge(001) was investigated by means of autocorrelation functions from surface x-ray diffraction (SXRD) and scanning tunneling microscopy (STM). Interatomic distances found in the SXRD-Patterson map are…

Strongly Correlated Electrons · Physics 2013-05-30 S. Meyer , T. Umbach , C. Blumenstein , J. Schäfer , R. Claessen , S. Sauer , S. J. Leake , P. R. Willmott , M. Fiedler , F. Bechstedt

The mechanism of adsorption of the 1,4,5,8-naphthalene-tetracarboxylic-dianhydride (NTCDA) molecule on the Ag(110) surface is elucidated on the basis of extensive density functional theory calculations. This molecule, together with its…

Materials Science · Physics 2007-05-23 Audrius Alkauskas , Alexis Baratoff , C. Bruder

Optical components and circuits that deal with multiple signal generation and processing are quintessential for artificial neural networks. Herein, we present a proof-of-concept four-layered organic optical artificial neural network…

The speculated presence of monomolecular lamellae of antagonistic salts in oil-water mixtures has left several open questions besides their hypothetical existence, including their microscopic structure and stabilization mechanism. Here, we…

Soft Condensed Matter · Physics 2021-03-19 David Jung , Jens Harting , Marcello Sega

Atomic cluster-based networks represent a promising architecture for the realization of neuromorphic computing systems, which may overcome some of the limitations of the current computing paradigm. The formation and breakage of synapses…

Atomic and Molecular Clusters · Physics 2023-09-06 Wenkai Wu , Alexey V. Verkhovtsev , Theodoros Pavloudis , Andrey V. Solov'yov , Richard E. Palmer

The formation of a 3D network composed of free standing and interconnected Pt nanowires is achieved by a two-step method, consisting of conformal deposition of Pt by atomic layer deposition (ALD) on a forest of carbon nanotubes and…

We generated trinitreno-s-heptazine, a small molecule featuring three nitrene centers, by tip-induced chemistry from the precursor 2,5,8-triazido-s-heptazine on bilayer NaCl on Au(111). The precursor's azide groups were dissociated to form…

Topographic scanning tunneling microscopy (STM) images of epitaxial single layer graphene on the Rh(111) surface reveal that extended single crystalline graphene domains are produced without any defects on a large scale. High resolution…

Materials Science · Physics 2010-10-08 M. Fonin , M. Sicot , O. Zander , S. Bouvron , Ph. Leicht , U. Rüdiger , M. Weser , Yu. S. Dedkov , K. Horn