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We present a theoretical study of the dynamics of H atoms adsorbed on graphene bilayers with Bernal stacking. First, through extensive density functional theory calculations, including van der Waals interactions, we obtain the activation…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 M. Moaied , J. A. Moreno , M. J. Caturla , F. Ynduráin , J. J. Palacios

The electric density profile along the normal to the phase interface between aromatic hydrocarbon toluene and water has been studied by X-ray reflectometry using synchrotron radiation. According to the experimental data, the width of the…

Soft Condensed Matter · Physics 2018-09-27 Aleksey M. Tikhonov

A series of density functional theory (DFT) simulations was performed to investigate the approach, contact, and subsequent separation of two atomically flat surfaces consisting of different materials. Aluminum (Al) and titanium nitride…

Materials Science · Physics 2015-04-24 Gregor Feldbauer , Michael Wolloch , Pedro O. Bedolla , Peter Mohn , Josef Redinger , András Vernes

Fullerenes have several advantages as potential materials for organic spintronics. Through a theoretical first-principles study, we report that fullerene C$_{60}$ adsorption can induce a magnetic reconstruction in a Ni(111) surface and…

Mesoscale and Nanoscale Physics · Physics 2015-07-31 R. Pang , X. Shi , M. A. van Hove

The formation of image-potential states at the interface between a graphene layer and a metal surface is studied by means of model calculations. An analytical one-dimensional model-potential for the combined system is constructed and used…

Mesoscale and Nanoscale Physics · Physics 2016-06-23 N. Armbrust , J. Güdde , U. Höfer

We use a simple generic model to study the desorption of atoms from a solid surface in contact with a liquid, by using a combination of Monte Carlo and molecular dynamics simulations. The behavior of the system depends on two parameters:…

Chemical Physics · Physics 2022-11-16 Krishna Jaiswal , Horia Metiu , Vishal Agarwal

We investigate the formation of fullerene-like structures from hot Carbon gas using classical molecular dynamics, employing Brenner's potential. In particular we examine the influence of different annealing strategies on fullerene yield,…

Materials Science · Physics 2009-12-22 Klaus Lichtenegger , Wolfgang von der Linden

The thermodynamics of adsorption of light alkanes and alkenes (CH4, C2H6, C2H4, C3H8, and C3H6) in single-walled carbon nanotube bundles is studied by configurational-bias grand canonical Monte Carlo simulation. The bundles consist of…

Mesoscale and Nanoscale Physics · Physics 2016-05-05 Fernando J. A. L. Cruz , José P. B. Mota

Interfaces play a crucial role in energy transport at the nanoscale. However, direct experimental observations of interfacial thermal conductance across molecular junctions have remained challenging due to the high spatiotemporal resolution…

Chemical Physics · Physics 2025-12-23 Md. Shahriar Hossain Shuvo , Xing He , Mithun Ghosh , Ding-Shyue Yang

Alkali metal atoms (Li, Na, K, Rb, Cs), dimers and (2$\times$2) monolayers on a graphite (0001) surface have been studied using density functional theory, pseudopotentials, and a periodic substrate. The adatoms bind at the hollow site…

Materials Science · Physics 2009-11-11 K. Rytkönen , J. Akola , M. Manninen

Graphene on $L1_0$-FePd(001), which has been experimentally studied in recent years, is a heterogeneous interface with a significant lattice symmetry mismatch between the honeycomb structure of graphene and tetragonal alloy surface. In this…

Materials Science · Physics 2022-09-14 Mitsuharu Uemoto , Hayato Adachi , Hiroshi Naganuma , Tomoya Ono

The role of local electron-vibration and electron-electron interactions on the thermoelectric properties of molecular junctions is theoretically analyzed focusing on devices based on fullerene molecules. A self-consistent adiabatic approach…

Mesoscale and Nanoscale Physics · Physics 2019-08-08 C. A. Perroni , V. Cataudella

We present experimental observations of atom-light interactions within tens of nanometers (down to 11~nm) of a sapphire surface. Using photon counting we detect the fluorescence from of order one thousand Rb or Cs atoms, confined in a vapor…

Atomic Physics · Physics 2014-07-10 K. A. Whittaker , J. Keaveney , I. G. Hughes , A. Sargsyan , D. Sarkisyan , C. S. Adams

Pairwise additive potentials for multielectronic atoms interacting with a LiF(001) surface are revisited by including an improved description of the electron density associated with the different lattice sites, as well as non-local electron…

Atomic Physics · Physics 2018-05-16 J. E. Miraglia , M. S. Gravielle

We introduce an approach to derive realistic Coulomb interaction terms in free standing layered materials and vertical heterostructures from ab-initio modelling of the corresponding bulk materials. To this end, we establish a combination of…

Materials Science · Physics 2015-08-12 M. Rösner , E. Şaşıoğlu , C. Friedrich , S. Blügel , T. O. Wehling

Ion thruster is a revolution technology with potential applications in space mission but the thrusters operation lifetime is limited by the sputtering from thruster components. In this work, molecular dynamic simulations are performed to…

Materials Science · Physics 2022-09-28 Cheng Zhang , Jiang Zhou , Weihua Xie , Jiacong Yin , Hongjiao Zhao

Single crystals of C$_{60}$ saturated with molecular hydrogen and nitrogen were studied using the spectral-luminescent method of registration in the quantum counting mode at a low temperature of 20 K. Previously, it was found that the…

Chemical Physics · Physics 2026-02-12 Victor Zoryansky , Peter Zinoviev , Yuri Semerenko

We propose an efficient scheme, which combines density functional theory (DFT) with deep potentials (DP), to systematically study the convergence issues of the computed electronic thermal conductivity of warm dense Al (2.7 g/cm$^3$,…

Computational Physics · Physics 2024-06-19 Qianrui Liu , Junyi Li , Mohan Chen

A semi-classical model describing the charge transfer collisions of $C_{60}$ fullerene with different slow ions has been developed to explain available experimental data. This data reveals multiple Breit-Wigner like peaks in the cross…

The dynamical Jahn--Teller effect on fullerene sites in insulating Cs$_3$C$_{60}$ is investigated fully ab initio. The vibronic excitations of rotational type are at $\ge$65 cm$^{-1}$ while the net kinetic contribution to the Jahn--Teller…

Strongly Correlated Electrons · Physics 2015-04-06 Naoya Iwahara , Liviu F. Chibotaru