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We present an ab-initio density function theory to investigate the electronic and magnetic structures of the bilayer graphene with intercalated atoms C, N, and O. The intercalated atom although initially positioned at the middle site of the…

Materials Science · Physics 2010-01-07 S. J. Gong , W. Sheng , Z. Q. Yang , J. H. Chu

We present tight binding molecular dynamics simulations of C_60 collisions on the reconstructed diamond(111) surface, carried out with an O(N) method and with cells containing 1140 atoms. The results of our simulations are in very good…

Condensed Matter · Physics 2016-08-31 Giulia Galli , Francesco Mauri

Surface adsorption of C$_{60}$ affects its chemical and electronic properties. Numerous studies have reported observation of bright and dark fullerenes on metal surfaces that suggest extensive surface reconstruction, however, the…

Materials Science · Physics 2021-12-01 Leonardo Forcieri , Simon Taylor , Philip Moriarty , Samuel P Jarvis

The adsorption of metal atoms on nanostructures, such as graphene and nanotubes, plays an important role in catalysis, electronic doping, and tuning material properties. Quantum chemical calculations permit the investigation of this process…

Mesoscale and Nanoscale Physics · Physics 2020-02-18 Christoph Rohmann , Maicol A. Ochoa , Michael Zwolak

The Casimir-Polder and van der Waals interactions between an atom and a flat cavity wall are investigated under the influence of real conditions including the dynamic polarizability of the atom, actual conductivity of the wall material and…

Quantum Physics · Physics 2009-03-27 V. M. Mostepanenko , J. F. Babb , A. O. Caride , G. L. Klimchitskaya , S. I. Zanette

We discuss hydrogen diffusion and solubility in aluminum alloyed Fe-Mn alloys. The systems of interest are subjected to tetragonal and isotropic deformations. Based on ab initio modelling, we calculate solution energies, then employ…

Materials Science · Physics 2016-07-06 C. Hüter , S. Dang , X. Zhang , A. Glensk , R. Spatschek

Development of new greenhouse gas scavengers is actively pursued nowadays. Volatility caused solvent consumption and significant regeneration costs associated with the aqueous amine solutions motivate search for more technologically and…

Materials Science · Physics 2017-06-29 Nadezhda A. Andreeva , Vitaly V. Chaban

We have investigated the electronic properties of a C_60 molecule in between carbon nanotube leads. This problem has been tackled within a quantum chemical treatment utilizing a density functional theory-based LCAO approach combined with…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 G. Cuniberti , R. Gutierrez , G. Fagas , F. Grossmann , K. Richter , R. Schmidt

We consider the van der Waals energy of an atom near the infinitely thin sphere with finite conductivity which model the fullerene. We put the sphere into spherical cavity inside the infinite dielectric media, then calculate the energy of…

Quantum Physics · Physics 2011-03-30 Nail R. Khusnutdinov

The interaction between graphene and copper (111) surface have been investigated using the molecular dynamics simulations. We have shown that it is possible to fit Lennard-Jones potential leading to the correct values of the binding energy…

Mesoscale and Nanoscale Physics · Physics 2016-11-03 A. V. Sidorenkov , S. V. Kolesnikov , A. M. Saletsky

We consider membranes adhered through specific receptor-ligand bonds. Thermal undulations of the membrane induce effective interactions between adhesion sites. We derive an upper bound to the free energy that is independent of interaction…

Soft Condensed Matter · Physics 2011-07-04 Thomas Speck

Dipolar susceptibility of interfacial water and the corresponding interface dielectric constant were calculated from numerical molecular dynamics simulations for neutral and charged states of buckminsterfullerene C$_{60}$. Dielectric…

Different computational techniques in combination with molecular dynamics computer simulation are used to to determine the wall-liquid and the wall-crystal interfacial free energies of a modified Lennard-Jones (LJ) system in contact with a…

Statistical Mechanics · Physics 2015-06-16 Ronald Benjamin , Jürgen Horbach

Time-dependent density-functional theory simulations are performed to examine the effects of varying incident points and kinetic energies of hydrogen atom projectiles on a graphene-like structure. The simulations reveal that the incident…

Materials Science · Physics 2024-12-11 Samuel S. Taylor , Nicholas Skoufis , Hongbo Du , Cody Covington , Kalman Varga

Generalizing the procedures of Girifalco and of Verheijen et al. and using results of the preceding work it has been derived the interaction potential between the molecules of different fullerenes Cn and Cm at orientationally disordered…

Other Condensed Matter · Physics 2014-10-13 V. I. Zubov

Using first-principles density functional theory simulations, we have observed that the scandium decorated C$_{24}$ fullerene can adsorb up to six hydrogen molecules with an average adsorption energy of -0.35 eV per H$_2$ and average…

Materials Science · Physics 2021-11-05 Vikram Mahamiya , Alok Shukla , Brahmananda Chakraborty

Mixing two chemical elements at the surface of a substrate is known to produce rich phase diagrams of surface alloys. Here, we extend the concept of surface alloying to the case where the two constituent elements are not both atoms, but…

We predict the structural interaction of crystalline solid-melt interfaces using amplitude equations which are derived from classical density functional theory or phase-field-crystal modeling. The solid ordering decays exponentially on the…

Materials Science · Physics 2015-06-12 Robert Spatschek , Ari Adland , Alain Karma

We use molecular dynamics simulations to study the thermodynamics and kinetics of alanine dipeptide isomerization at the air-water interface. Thermodynamically, we find an affinity of the dipeptide to the interface. This affinity arises…

Statistical Mechanics · Physics 2022-01-10 Aditya N. Singh , David T. Limmer

We present a study on the transport and materials properties of aluminum spanning from ambient to warm dense matter conditions using a machine-learned interatomic potential (ML-IAP). Prior research has utilized ML-IAPs to simulate phenomena…