ClasSOMfier: A neural network for cluster analysis and detection of lattice defectsClasSOMfier is a software package to classify atoms into a given number of disconnected groups (or clusters) and detect lattice defects, such as vacancies, interstitials, dislocations, voids and…Javier F. Troncoso·Oct 8, 2020SaveLearn
Picosecond pulse-shaping for strong three-dimensional field-free alignment of generic asymmetric-top moleculesFixing molecules in space is a crucial step for the imaging of molecular structure and dynamics. Here, we demonstrate three-dimensional (3D) field-free alignment of the prototypical asymmetric top…Terry Mullins, Evangelos Thomas Karamatskos, Joss Wiese et al.·Sep 17, 2020SaveLearn
Symmetry breaking of the bending mode of CO2 in the presence of ArThe weak infrared spectrum of CO2-Ar corresponding to the (0111) <-- (0110) hot band of CO2 is detected in the region of the carbon dioxide nu3 fundamental vibration (~2340 cm-1), using a tunable OPO…T. A. Gartner, A. J. Barclay, A. R. W. McKellar et al.·Sep 9, 2020SaveLearn
Time-resolved study of resonant interatomic Coulombic decay in helium nanodropletsWhen weakly-bound complexes are multiply excited by intense electromagnetic radiation, energy can be exchanged between neighboring atoms through a type of resonant interatomic Coulombic decay (ICD).…A. C. LaForge, R. Michiels, Y. Ovcharenko et al.·Sep 3, 2020SaveLearn
Electric deflection of imidazole dimers and trimers in helium nanodroplets: Dipole moments, structure, and fragmentationDeuterated imidazole (IM) molecules, dimers and trimers formed in liquid helium nanodroplets are studied by the electrostatic beam deflection method. Monitoring the deflection profile of (IM)D+…Benjamin S. Kamerin, John W. Niman, Vitaly V. Kresin·Aug 25, 2020SaveLearn
Independent-atom-model coupled-channel calculations strengthen the case for interatomic Coulomb decay as a subdominant reaction channel in slow O3+-Ne2 collisionsWe report on electron removal calculations for 2.81 keV/amu Li3+ and O3+ ion collisions with neon dimers. The target is described as two independent neon atoms fixed at the dimer's…Dyuman Bhattacharya, Tom Kirchner·Aug 23, 2020SaveLearn
Efimov effect in non-integer dimensions induced by an external fieldThe Efimov effect can be induced by means of an external deformed one-body field that effectively reduces the allowed spatial dimensions to less than three. To understand this new mechanism,…E. Garrido, A. S. Jensen·Aug 17, 2020SaveLearn
Protocol for Optically Pumping AlH+ to a Pure Quantum StateWe propose an optical pumping scheme to prepare trapped AlH+ molecules in a pure state, the stretched hyperfine state F=72,\, mF=72 of the rovibronic…Panpan Huang, Schuyler Kain, Antonio de Oliveira-Filho et al.·Jul 30, 2020SaveLearn
Fragmentation of molecules by virtual photons from remote neighborsIt is shown that a molecule can dissociate by the energy transferred from a remote neighbor. This neighbor can be an excited neutral or ionic atom or molecule. If it is an atom, the transferred…Lorenz S. Cederbaum·Jul 16, 2020SaveLearn
The C60- thermal electron emission rateThe thermal electron emission rate constant for C60- has been deduced over a range of 4 eV internal energy from storage ring measurements of the decays of ions reheated with single photons…Klavs Hansen·Jul 10, 2020SaveLearn
Photoelectron spectroscopy of coronene molecules embedded in helium nanodropletsWe present the first measurement of a one-photon extreme-ultraviolet photoelectron spectrum (PES) of molecules embedded in superfluid helium nanodroplets. The PES of coronene is compared to gas phase…L. Ben Ltaief, M. Shcherbinin, S. Mandal et al.·Jul 8, 2020SaveLearn
Laboratory study of the formation of fullerene (from smaller to larger, C44 to C70)/anthracene cluster cations in the gas phaseThe formation and evolution mechanism of fullerenes in the planetary nebula or in the interstellar medium are still not understood. Here we present the study on the cluster formation and the relative…Deping Zhang, Yuanyuan Yang, Xiaoyi Hu et al.·Jun 30, 2020SaveLearn
Spectra of CO2-N2 dimer in the 4.2 micron region: symmetry breaking of the intramolecular CO2 bend, the intermolecular bend and higher K-values for the fundamentalInfrared spectra of the CO2-N2 dimer are observed in the carbon dioxide nu3 asymmetric stretch region (~2350 cm-1) using a tunable infrared optical parametric oscillator to probe a pulsed slit jet…A. J. Barclay, A. R. W. McKellar, N. Moazzen-Ahmadi·Jun 25, 2020SaveLearn
Time delay of photoionization by EndohedralsIn this Letter, we investigate the time delay of photoelectrons by fullerenes shell in endohedrals. We present general formulas in the frame of the random phase approximation with exchange (RPAE)…M. Ya. Amusia, L. V. Chernysheva·Jun 21, 2020SaveLearn
Charge Migration Manifests as Attosecond Solitons in Conjugated Organic MoleculesCharge migration is the electronic response that immediately follows localized ionization or excitation in a molecule, before the nuclei have time to move. It typically unfolds on sub-femtosecond…Francois Mauger, Aderonke Folorunso, Kyle Hamer et al.·Jun 15, 2020SaveLearn
Direct inner-shell photoionization of Xe atoms embedded in helium nanodropletsWe present the first measurements of photoelectron spectra of atomic clusters embedded in superfluid helium (He) nanodroplets. Owing to the large absorption cross section of xenon (Xe) around 100 eV…Ltaief Ben Ltaief, Mykola Shcherbinin, Suddhasattwa Mandal et al.·Jun 14, 2020SaveLearn
Generalized Sturmian Functions in prolate spheroidal coordinatesWith the aim of describing bound and continuum states for diatomic molecules, we develop and implement a spectral method that makes use of Generalized Sturmian Functions (GSF) in prolate spheroidal…D. M. Mitnik, F. A. Lopez, L. U. Ancarani·Jun 11, 2020SaveLearn
Laser-induced Electron-Transfer in the Dissociative Multiple Ionization of Argon DimersWe report on an experimental and theoretical study of the ionization-fragmentation dynamics of argon dimers in intense few-cycle laser pulses with a tagged carrier-envelope phase. We find that a…YanLan Wang, XuanYang Lai, ShaoGang Yu et al.·Jun 5, 2020SaveLearn
Rotational coherence spectroscopy of molecules in helium nanodroplets: Reconciling the time and the frequency domainsAlignment of OCS, CS2 and I2 molecules embedded in helium nanodroplets is measured as a function of time following rotational excitation by a non-resonant, comparatively weak ps laser pulse.…Adam S. Chatterley, Lars Christiansen, Constant A. Schouder et al.·Jun 4, 2020SaveLearn
Soft landing of metal clusters on graphite: a molecular dynamics studyStructure and stability of 3 nm size Ag887, Au887 and Ti787 clusters deposited on graphite under soft-landing conditions ( 10-3- 100 eV per atom) are studied by means of…Alexey V. Verkhovtsev, Yury Erofeev, Andrey V. Solov'yov·May 12, 2020SaveLearn
Ignition of a helium nanoplasma by x-ray multiple ionization of a heavy rare-gas coreThe dynamics of an x-ray-ionized two-component core-shell nanosystem is probed using doped helium (He) nanodroplets. First, a soft x-ray pump pulse selectively inner-shell ionizes the core cluster…D. Schomas, C. Medina, L. Ben Ltaief et al.·May 6, 2020SaveLearn
Efficient yet Accurate Dispersion-Corrected Semilocal Exchange-Correlation Functionals For Non-Covalent InteractionsDue to several attractive features, the meta-generalized-gradient approximations (meta-GGAs) are considered to be the most advanced and potentially accurate semilocal exchange-correlation functionals…Abhilash Patra, Subrata Jana, Lucian A. Constantin et al.·Apr 27, 2020SaveLearn
Measurement of Rb g-series quantum defect using two-photon microwave spectroscopyWe utilize two-photon high-precision microwave spectroscopy of ng→(n+2)g transitions to precisely measure the high-angular-momentum g-series quantum defect of 85Rb. Samples of cold…K. Moore, A. Duspayev, R. Cardman et al.·Apr 23, 2020SaveLearn
Electron Chirality in Amino Acid MoleculesWe evaluated the total electron chirality in alanine, serine, and valine, which are molecules that have chiral structures. Previously, it has been considered that the total electron chirality of…Masato Senami, Tomoki Shimizu·Apr 13, 2020SaveLearn
Penning Spectroscopy and Structure of Acetylene Oligomers in He NanodropletsEmbedded atoms or molecules in a photoexcited He nanodroplet are well-known to be ionized through inter-atomic relaxation in a Penning process. In this work, we investigate the Penning ionization of…S. Mandal, R. Gopal, M. Shcherbinin et al.·Apr 13, 2020SaveLearn