Sublimation of the Endohedral Fullerene Er3N@C80The heat of sublimation of the endohedral metallofullerene Er3N@C80 was measured via Knudsen effusion mass spectrometry. The large molecule consists of a C80 fullerene cage which is stabilized by…Alexander Stibor, Hannah Schefzyk, József Fortágh·Dec 18, 2009SaveLearn
Confinement resonances in photoionization of endohedral atoms: a myth or reality?We demonstrate that the structure of confinement resonances in the photoionization cross section of an endohedral atom is very sensitive to the mean displacement <a> of the atom from the cage center.…A. V. Korol, A. V. Solov'yov·Dec 14, 2009SaveLearn
Exciton-impurity luminescence from noncrystalline xenon-argon clustersFor the first time in binary mixtures of solid rare gases exciton-impurity luminescence is observed from a xenon-argon system containing argon as impurity. An exciton-impurity emission band is…O. G. Danylchenko, Yu. S. Doronin, S. I. Kovalenko et al.·Dec 1, 2009SaveLearn
Electron Affinity, Electronegativity and Electrophilicity of AnionsElectron affinity, electronegativity and electrophilicity of several neutral atoms and their positive and negative ions are calculated at various levels of theory using different basis sets in the…P. K. Chattaraj, S. Duley·Nov 29, 2009SaveLearn
Trapping of Noble Gases (He-Kr) by the Aromatic H3+ and Li3+ Species: A Conceptual DFT ApproachStability, reactivity and aromaticity of clusters of various noble gas atoms trapped in aromatic H3+ and Li3+ rings are studied at the B3LYP/6-311+G(d) and MP2/6-311+G(d) levels of theory.…Arindam Chakraborty, Santanab Giri, Pratim Kumar Chattaraj·Nov 28, 2009SaveLearn
Electron Transport Properties of Atomic Carbon Nanowires between Graphene ElectrodesLong, stable and free-standing linear atomic carbon wires have been carved out from graphene recently [Meyer et al: Nature (London) 2008, 454, 319; Jin et al: Phys: Rev: Lett: 2009, 102, 205501].…L. Shen, M. G. Zeng, S. W. Yang et al.·Oct 21, 2009SaveLearn
Ca impurity in small mixed 4He-3He clustersThe structure of small mixed helium clusters doped with one calcium atom has been determined within the diffusion Monte Carlo framework. The results show that the calcium atom sits at the…R. Guardiola, J. Navarro, D. Mateo et al.·Oct 14, 2009SaveLearn
Electric dipole moments of nitric acid-water complexes measured by cluster beam deflectionWater clusters embedding a nitric acid molecule HNO3(H2O)n=1-10 are investigated via electrostatic deflection of a molecular beam. We observe large paraelectric susceptibilities that greatly…Ramiro Moro, Jonathon Heinrich, Vitaly V. Kresin·Oct 8, 2009SaveLearn
He2+-He charge transfer collisions using a 27-state close-coupled calculation with a diabatic molecular basisA comparative study of two earlier three-state and fifteen-state [Chaudhuri et al., Pramana- J. Phys., 43, 175 (1994); ibid., Phys. Rev. A, 52, 1137 (1995)] close-coupled treatments of He2+-He single…Chanchal Chaudhuri·Oct 2, 2009SaveLearn
The Structure of Rh8+ in the Gas PhaseThe geometric structure of the Rh8+ cation is investigated using a combination of far-infrared multiple photon dissociation spectroscopy and density functional theory (DFT) calculations. The…D. J. Harding, T. R. Walsh, S. M. Hamilton et al.·Sep 30, 2009SaveLearn
Adsorption of Ethylene on Neutral, Anionic and Cationic Gold ClustersThe adsorption of ethylene molecule on neutral, anionic and cationic gold clusters consisting of up to 10 atoms has been investigated using density-functional theory. It is demonstrated that C2H4 can…Andrey Lyalin, Tetsuya Taketsugu·Sep 29, 2009SaveLearn
Evidence for Landau's critical velocity in superfluid helium nanodroplets from wave packet dynamics of attached potassium dimersFemtosecond pump-probe spectroscopy has been used to study vibrational dynamics of potassium dimers attached to superfluid helium nanodroplets. Comparing the measured data with theoretical results…Martin Schlesinger, Marcel Mudrich, Frank Stienkemeier et al.·Sep 25, 2009SaveLearn
Optimal Control of the Strong-Field Ionization of Silver Clusters in Helium DropletsOptimal 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…N. X. Truong, P. Hilse, S. G/"ode et al.·Sep 21, 2009SaveLearn
Berry-like phases in structured atoms and moleculesQuantum mechanical phases arising from a periodically varying Hamiltonian are considered. These phases are derived from the eigenvalues of a stationary, ``dressed'' Hamiltonian that is able…Edmund R. Meyer, Aaron Leanhardt, Eric Cornell et al.·Sep 10, 2009SaveLearn
Electron penetration in the nucleus and its effect on the quadrupole interactionA series expansion of the interaction between a nucleus and its surrounding electron distribution provides terms that are well-known in the study of hyperfine interactions: the familiar quadrupole…Katrin Koch, Klaus Koepernik, Dimitri Van Neck et al.·Aug 28, 2009SaveLearn
Origin of the anomalous Slater-Pauling curve in cobalt-manganese alloy clustersSurprising enhancement of the magnetic moments recently observed in dilute Co-Mn alloy clusters is explained using ab initio electronic structure calculations. The calculated magnetic moments…M. Pereiro, D. Baldomir, J. E. Arias·Aug 17, 2009SaveLearn
Structure, reactivity and electronic properties of V-doped Co clustersStructures, physical and chemical properties of V doped Co13 clusters have been studied in detail using density functional theory based first-principles method. We have found anomalous variation…Soumendu Datta, Mukul Kabir, Tanusri Saha-Dasgupta et al.·Aug 15, 2009SaveLearn
Steplike intensity threshold behavior of extreme ionization in laser-driven Xe clustersThe generation of highly charged Xeq+ ions up to q=24 is observed in Xe clusters embedded in helium nanodroplets and exposed to intense femtosecond laser pulses (λ=800 nm). Laser intensity…T. Döppner, J. P. Müller, A. Przystawik et al.·Aug 14, 2009SaveLearn
Minimum sizes for the submersion of alkali clusters into liquid heliumAlkali atoms do not stably embed in liquid helium-4 because the interatomic attractive potential is unable to overcome the short-range Pauli repulsion of the s electrons and the surface tension cost…Casey Stark, Vitaly V. Kresin·Aug 4, 2009SaveLearn
Understanding the atomic-scale contrast in Kelvin Probe Force MicroscopyA numerical analysis of the origin of the atomic-scale contrast in Kelvin probe force microscopy (KPFM) is presented. Atomistic simulations of the tip-sample interaction force field have been…Laurent Nony, Adam S. Foster, Franck Bocquet et al.·Jul 23, 2009SaveLearn
SAXS Structural Characterization of Nanoheterogeneous Conducting Thin Films. A Brief Review of SAXS TheoriesThe SAXS (small angle X-ray scattering) technique has been used to determine the fundamental structure of conducting thin films fabricated by implanting gold ions into PMMA (polymethylmethacrylate)…M. Cattani, M. C. Salvadori, F. S. Teixeira·Jul 17, 2009SaveLearn
High-resolution spectroscopy of triplet states of Rb2 by femtosecond pump-probe photoionization of doped helium nanodropletsThe dynamics of vibrational wave packets in triplet states of rubidium dimers (Rb2) formed on helium nanodroplets are studied using femtosecond pump-probe photoionization spectroscopy. Due to fast…M. Mudrich, Ph. Heister, T. Hippler et al.·Jul 16, 2009SaveLearn
Many-body theory for angular resolved photoelectron spectra of metal clustersAngular resolved photoelectron spectra of metal clusters have been experimentally measured for the first time only recently. These measurements have been performed systematically for sodium clusters…Andrey V. Solov'yov, Roman G. Polozkov, Vadim K. Ivanov·Apr 30, 2009SaveLearn
Photoabsorption by Volume Plasmons in Metal NanoclustersIt is well known that plasmons in bulk metals cannot be excited by direct photoabsorption, that is, by coupling of volume plasmons to light. Here we demonstrate that the situation in nanoclusters of…Chunlei Xia, Chunrong Yin, Vitaly V. Kresin·Apr 20, 2009SaveLearn
Laser-driven nonlinear cluster dynamicsLaser excitation of nanometer-sized atomic and molecular clusters offers various opportunities to explore and control ultrafast many-particle dynamics. Whereas weak laser fields allow the analysis of…Th. Fennel, K. -H. Meiwes-Broer, J. Tiggesbaumker et al.·Apr 17, 2009SaveLearn