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Oxide materials offer a wide range of interesting physical and chemical properties. Even more versatile behavior of oxides is seen at the nanoscale, qualifying these materials for a number of applications. In this study we used DFT…

We have used diffusion Monte Carlo (DMC) calculations to study the structural properties of magnesium hydride (MgH$_2$), including the pressure-volume equation of state, the cohesive energy and the enthalpy of formation from magnesium bulk…

Materials Science · Physics 2009-11-13 M. Pozzo , D. Alfè

While photodissociation of molecular systems has been extensively studied, the photoinduced formation of chemical bonds remains largely unexplored. Especially for larger aggregates, the electronic and nuclear dynamics involved in the…

Chemical Physics · Physics 2024-12-03 Michael Stadlhofer , Bernhard Thaler , Pascal Heim , Josef Tiggesbäumker , Markus Koch

Pendant droplets of water and paramagnetic solutions are studied in the presence of uniform and nonuniform magnetic fields produced by small permanent magnet arrays, both in static conditions and during dynamic pinch-off. Static…

The size-dependent electronic, structural, magnetic and vibrational properties of small pure cop- per and silver clusters and their alloys with one and two palladium atoms are studied by using full-potential all-electron density functional…

Magnesium alanate Mg(AlH4)2 has recently raised interest as a potential material for hydrogen storage. We apply ab initio calculations to characterize structural, electronic and energetic properties of Mg(AlH4)2. Density functional theory…

Materials Science · Physics 2007-05-23 M. J. van Setten , G. A. de Wijs , V. A. Popa , G. Brocks

Magnesium (Mg) has mechanical properties similar to bone tissue, and Mg ions take part in the metabolism. This makes Mg of interest for biocompatible degradable body implants, provided that its high corrosion rate can be inhibited. Slightly…

Materials Science · Physics 2026-01-13 John Bolin , Amanda Goold , Olof Hildeberg , Alva Limbäck , Elsebeth Schröder

Dispersion corrected density functional theory ($\omega$B97X-D DFT) method is used to study the molecular hydrogen adsorption in $Ni_nMg_m$ $(1\geq n\geq 3,1\geq m\geq9)$ clusters. All these clusters can effectively adsorb multiple $H_2$ in…

Materials Science · Physics 2022-02-28 Bishwajit Boruah , Bulumoni Kalita

We use a novel technique to solvate silver cations in small clusters of noble gases. The technique involves formation of large, superfluid helium nanodroplets that are subsequently electron ionized, mass-selected by deflection in an…

Atomic and Molecular Clusters · Physics 2022-11-11 Masoomeh Mahmoodi-Darian , Paul Martini , Lukas Tiefenthaler , Jaroslav Kočišek , Paul Scheier , Olof Echt

In this paper, we have studied the effect of doping of ZnO and MgO nanoparticles (NPs) in 4-(trans-4-n-hexylcyclo-hexyl) isothiocyanatobenzoate. A thorough comparison of dielectric properties, optoelectronic properties, and calorimetric…

Applied Physics · Physics 2024-01-18 A. K. Singh , S. P. Singh

An ultrafine grained magnesium alloy has been produced through room temperature high-pressure torsion (HPT) of solutionised Mg-1.35 wt.%Mn. Dynamic precipitation of nanometer-scale Mn particles occurred during deformation. These particles…

Materials Science · Physics 2026-03-17 Julian M. Rosalie , Anton Hohenwarter

We have studied the solubility of molecular hydrogen in bulk liquid $^4$He at zero temperature using the diffusion Monte Carlo method and realistic interatomic potentials between the different species of the mixture. Around the $^4$He…

Statistical Mechanics · Physics 2009-10-31 J. M. Marin , J. Boronat , J. Casulleras

Cross sectional scanning tunneling microscopy (XSTM) and density functional theory have been used to characterize the structure of GaSb digitally doped with Mn. The Mn dopants are found in both isolated substitutional form as well as in…

Materials Science · Physics 2009-11-10 G. I. Boishin , J. M. Sullivan , L. J. Whitman

Doubly-excited Rydberg states of helium (He) nanodroplets have been studied using synchrotron radiation. We observed Fano resonances related to the atomic N = 2,0 series as a function of droplet size. Although similar qualitatively to their…

Space resolved concentrations of helium He metastable atoms in an atmospheric pressure radio-frequency micro-plasma jet were measured using tunable diode laser absorption spectroscopy. The spatial profile of metastable atoms in the volume…

Plasma Physics · Physics 2015-05-28 B Niermann , T Hemke , N Y Babaeva , M Böke , M J Kushner , T Mussenbrock , J Winter

Ni-doped MoS$_2$ is a layered material with useful tribological, optoelectronic, and catalytic properties. Experiment and theory on doped MoS$_2$ has focused mostly on monolayers or finite particles: theoretical studies of bulk Ni-doped…

Materials Science · Physics 2021-07-01 Enrique Guerrero , Rijan Karkee , David A. Strubbe

As opposed to purely molecular systems where electron dynamics proceed only through intramolecular processes, weakly bound complexes such as He droplets offer an environment where local excitations can interact with neighbouring embedded…

Atomic and Molecular Clusters · Physics 2021-04-15 A. C. LaForge , M. Shcherbinin , F. Stienkemeier , R. Richter , R. Moshammer , T. Pfeifer , M. Mudrich

Magnesium hydride has great potential as a solid hydrogen (H) storage material because of its high H storage capacity of 7.6 wt%. However, its slow hydrogenation and dehydrogenation kinetics and the high temperature of 300 $^\circ$C…

Materials Science · Physics 2023-04-25 R. Kadono , M. Hiraishi , H. Okabe , A. Koda , T. U. Ito

The crystal structure of MoS$_2$ with strong covalent bonds in plane and weak Van der Waals interactions out of plane gives rise to interesting properties for applications such as solid lubrication, optoelectronics, and catalysis, which can…

Materials Science · Physics 2021-07-28 Rijan Karkee , Enrique Guerrero , David A. Strubbe

Tuning of the electronic properties of pre-synthesized colloidal semiconductor nanocrystals (NCs) by doping plays a key role in the prospect of implementing them in printed electronics devices such as transistors, and photodetectors. While…

Materials Science · Physics 2021-05-25 Yorai Amit , Yuanyuan Li , Anatoly I. Frenkel , Uri Banin