Results 51 to 60 of about 379,294 (295)

Projector operators for the no-core shell model [PDF]

, 2006
Projection operators for the use within ab initio no-core shell model, are suggested.Comment: 3 ...
A. M. Shirokov, A. M. Shirokov, D. C. Zheng, D. C. Zheng, G. F. Filippov, P. Navrátil   +5 more
core   +2 more sources

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

Modeling the sorption dynamics of NaH using a reactive force field [PDF]

, 2008
We have parametrized a reactive force field for NaH, ReaxFFNaH, against a training set of ab initio derived data. To ascertain that ReaxFFNaH is properly parametrized, a comparison between ab initio heats of formation of small representative NaH clusters
Goddard, William A., III, Kramer, Gert Jan, Ojwang, J. G. O., van Duin, Adri C. T., van Santen, Rutger   +4 more
core  

A hierarchical research by large-scale and ab initio electronic structure theories -- Si and Ge cleavage and stepped (111)-2x1 surfaces --

, 2009
The ab initio calculation with the density functional theory and plane-wave bases is carried out for stepped Si(111)-2x1 surfaces that were predicted in a cleavage simulation by the large-scale (order-N) electronic structure theory (T. Hoshi, Y.
A. Ishii, Ancilotto, Car, Feenstra, Feenstra, Geshi, Hoshi, Hoshi, Hoshi, Hoshi, Hoshi, Hoshi, Hoshi, Hoshi, Hoshi, Huang, Iguchi, Inami, Irifune, Kermode, Kondo, Kresse, Kresse, M. Tanikawa, Pandey, Pérez, Rohlfing, Shinaoka, Spence, Stroscio, T. Hoshi, Takayama, Takayama, Yamamoto   +33 more
core   +1 more source

Lithium Intercalation in the Anisotropic Van Der Waals Semiconductor CrSBr

Advanced Functional Materials, EarlyView.
We report the lithium intercalation in the layered van der Waals crystal CrSBr, revealing strongly anisotropic ion‐migration dynamics. Optical and electrical characterization of exfoliated CrSBr shows lithium diffusion coefficients that differ by more than an order of magnitude along a‐ and b‐directions, consistent with molecular dynamics simulations ...
Kseniia Mosina, Aljoscha Söll, Jiří Šturala, Martin Veselý, Petr Levinsky, Ondřej Kaman, Florian Dirnberger, Giuliana Materzanini, Nicola Marzari, Gian‐Marco Rignanese, Borna Radatović, Vlastimil Mazánek, David Sedmidubský, Zdeněk Sofer   +13 more
wiley   +1 more source

Ab initio nonrigid X-ray nanotomography

Nature Communications, 2019
Radiation induced sample deformation can be a limiting factor for X-ray imaging resolution at the nanoscale. The authors report a tomographic model that estimates and accounts for morphological changes during data acquisition and enables reconstruction ...
Michal Odstrcil, Mirko Holler, Jörg Raabe, Alessandro Sepe, Xiaoyuan Sheng, Silvia Vignolini, Christian G. Schroer, Manuel Guizar-Sicairos   +7 more
doaj   +1 more source

Ab-Initio Molecular Dynamics

, 2013
Computer simulation methods, such as Monte Carlo or Molecular Dynamics, are very powerful computational techniques that provide detailed and essentially exact information on classical many-body problems.
Alavi, Alder, Almlöf, Alonso, Andrade, Arias, Baroni, Bendt, Benoit, Berendsen, Berne, Binder, Binder, Blöchl, Blöchl, Blöchl, Born, Bornemann, Briggs, Camellone, Car, Caravati, Caravati, Caravati, Caravati, Caravati, Caravati, Ceperley, Ceperley, Ceriotti, Ceriotti, Chandler, Cucinotta, Dai, Dreizler, Ehrenfest, Engel, Ferguson, Fermi, Feynman, Feynman, Foulkes, Frenkel, Galli, Gan, Gilbert, Gillan, Goedecker, Goedecker, Guidon, Guidon, Guidon, Habershon, Harriman, Harris, Hartree, Hassanali, Hellmann, Herbert, Hohenberg, Hutter, Iannuzzi, Jones, Kalos, Khaliullin, Khaliullin, Koch, Kohanoff, Kohn, Kohn, Kolafa, Kolafa, Krack, Krack, Krack, Krajewski, Kresse, Kresse, Kresse, Kühne, Kühne, Kühne, Kühne, Laasonen, Landau, Levy, Lieb, Lippert, Lippert, Liu, Los, Los, Luduena, Luduena, Martin, Martyna, Marx, Marx, Marzari, McWeeny, Mermin, Metropolis, Modine, Morrone, Mostofi, Niklasson, Niklasson, Palser, Parr, Parrinello, Pascal, Pastore, Payne, Perdew, Pulay, Putrino, Rahman, Rapacioli, Rapaport, Ricci, Richters, Röhrig, Scheffler, Schlegel, Schmid, Selloni, Sharma, Smargiassi, Tangney, Tangney, Thomas, Thomas, Todorova, Tuckerman, Tuckerman, Tymczak, VandeVondele, VandeVondele, VandeVondele, Yang, Zhang   +140 more
core   +1 more source

Predicting Atomic Charges in MOFs by Topological Charge Equilibration

Advanced Functional Materials, EarlyView.
An atomic charge prediction method is presented that is able to accurately reproduce ab‐initio‐derived reference charges for a large number of metal–organic frameworks. Based on a topological charge equilibration scheme, static charges that fulfill overall neutrality are quickly generated.
Babak Farhadi Jahromi, Sumukh Shankar Sharadaprasad, Rochus Schmid   +2 more
wiley   +1 more source

STUDY ON THE CONFORMATIONS OF p-(NITRO)METHOXYCALIX[4]ARENE AND p-(tert-BUTYL)METHOXYCALIX[4]ARENE USING HIGH LEVEL AB INITIO METHOD

Indonesian Journal of Chemistry, 2010
Ab initio calculations have been performed in order to investigate the conformational characteristics of p-(nitro)methoxycalix[4]arene and p-(tert-butyl)methoxycalix[4]arene.
Hanggara Sudrajat, Danis Sriwijaya, Herman Siagian, Ria Armunanto   +3 more
doaj   +1 more source

Ab initio based thermal property predictions at a low cost : an error analysis [PDF]

, 2014
Ab initio calculations often do not straightforwardly yield the thermal properties of a material yet. It requires considerable computational efforts, for example, to predict the volumetric thermal expansion coefficient alpha(V) or the melting temperature
Cottenier, Stefaan, Jaeken, Jan, Lejaeghere, Kurt, Van Speybroeck, Veronique   +3 more
core   +1 more source