English
Related papers

Related papers: Optical response of small silver clusters

200 papers

The ground-state electronic, structural, and magnetic properties of small silver clusters, Ag$_n$ (2$\le$n$\le$22), have been studied using a linear combination of atomic Gaussian-type orbitals within the density functional theory. The…

Atomic and Molecular Clusters · Physics 2009-11-11 M. Pereiro , D. Baldomir , J. E. Arias

Size-selected silver clusters on Ag(111) were fabricated with the tip of a scanning tunneling microscope. Unoccupied electron resonances give rise to image contrast and spectral features which shift toward the Fermi level with increasing…

Materials Science · Physics 2009-11-13 A. Sperl , J. Kroeger , N. Neel , H. Jensen , R. Berndt , A. Franke , E. Pehlke

Modeling plasmonic catalysis by applying femtosecond laser pulses of high intensity ($10^{13}-10^{15}$ W cm$^{-2}$), although justified by the time-dependent density functional theory (TDDFT) time-scale limitations, can lead to a…

Chemical Physics · Physics 2025-12-18 Natalia E. Koval , J. Iñaki Juaristi , Maite Alducin

This article describes the optical properties of nanostructures composed of silver particles embedded into a gold matrix. In previous studies these materials were shown to exhibit temperature dependent transitions to a highly conductive and…

Atomically precise thiolate-stabilized gold nanoclusters are currently of interest for many cross-disciplinary applications in chemistry, physics and molecular biology. Very recently, synthesis and electronic properties of "nanoalloy"…

Atomic and Molecular Clusters · Physics 2011-09-05 Sami Malola , Hannu Häkkinen

We present a comparative study of metal-organic interface properties obtained from dispersion corrected density functional theory calculations based on two different approaches: the periodic slab supercell technique and cluster models with…

Tight-binding molecular dynamics (TBMD) is used to study the structural and electronic properties of silver clusters. The ground state structures of Ag clusters up to 21 atoms are optimized via TBMD combined with genetic algorithm (GA). The…

Atomic and Molecular Clusters · Physics 2007-05-23 Jijun Zhao

Using the stabilized jellium model with self-compression, we have calculated the dissociation energies and the barrier heights for the binary fragmentation of charged silver clusters. At each step of calculations, we have used the…

Atomic and Molecular Clusters · Physics 2007-05-23 M. Payami

Optimal control techniques combined with femtosecond laser pulse shaping are applied to steer and enhance the strong-field induced emission of highly charged atomic ions from silver clusters embedded in helium nanodroplets. With light…

Hartree-Fock and coupled-cluster calculations have been performed for cubic AgCl and for AuCl having a cubic or the observed structure with space group I4_1/amd. Cohesive energies and lattice constants are in excellent agreement with…

Materials Science · Physics 2009-10-31 Klaus Doll , Pekka Pyykkoe , Hermann Stoll

The electric dipole strength in 120Sn has been extracted from proton inelastic scattering experiments at E_p = 295 MeV and at forward angles including 0 degree. Below neutron threshoild it differs from the results of a 120Sn(gamma,gamma')…

Second electron affinities of Au_N and Ag_N clusters and the dissociation energies for fission of the Au_N^{2-} and Ag_N^{2-} dianions are calculated using the finite-temperature shell-correction method and allowing for triaxial…

Atomic and Molecular Clusters · Physics 2009-11-06 Constantine Yannouleas , Uzi Landman

The adsorption of Ag$_3$ and Ag$_4$ clusters on the $\alpha$-Al$_2$O$_3$(0001) surface is explored with density functional theory. Within each adsorbed cluster, two different cluster-surface interactions are present. We find that silver…

Materials Science · Physics 2007-05-23 Elizabeth A. Sokol , Sara E. Mason , Valentino R. Cooper , Andrew M. Rappe

The basis of low-temperature superconductivity has been set to be the pair formation of electrons, due to their effective attraction. The appearance of an effective attraction potential has also been predicted for electron-electron…

Mesoscale and Nanoscale Physics · Physics 2014-06-10 Norbert Kroo , Peter Racz , Sandor Varro

Spontaneous decays of small, hot silver cluster anions Ag$_{n}$, $n=4-7$ have been studied using one of the rings of the Double ElectroStatic Ion Ring ExpEriment (DESIREE). Observation of these decays over very long time scales is possible…

Atomic and Molecular Clusters · Physics 2018-09-12 E. K. Anderson , M. Kamińska , K. C. Chartkunchand , G. Eklund , M. Gatchell , K. Hansen , H. Zettergren , H. Cederquist , H. T. Schmidt

We propose a realistic model of the optical properties of silver, in which inter-band transition with a threshold energy of ~ 4 eV is described phenomenologically by an ensemble of oscillators with same damping constant and a certain…

Materials Science · Physics 2013-12-12 Armen Melikyan , Boris Kryzhanovsky

Ab initio calculations of the electronic energy loss of ions moving in aluminum crystal are presented, within linear-response theory, from a realistic description of the one-electron band-structure and a full treatment of the dynamical…

Materials Science · Physics 2009-10-31 I. Campillo , J. M. Pitarke , A. G. Eguiluz

We present a linear-response formalism for a system of correlated electrons out of equilibrium, as relevant for the probe optical absorption in pump-probe experiments. We consider the time dependent optical conductivity $\sigma(\omega,t)$…

Strongly Correlated Electrons · Physics 2017-04-04 Zala Lenarčič , Denis Golež , Janez Bonča , Peter Prelovšek

Shell-model calculations of the electric dipole (E1) polarizability have been performed for the ground state of selected p- and sd-shell nuclei, substantially advancing previous knowledge. Our results are slightly larger compared with the…

Nuclear Theory · Physics 2023-09-19 José Nicolás Orce , Cebo Ngwetsheni , B. Alex Brown

The optical response of metal nanoparticles is governed by plasmonic resonances, which are dictated by the particle morphology. A thorough understanding of the link between morphology and optical response requires quantitatively measuring…