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We explore the appearance of light clusters at high densities of collapsing stellar cores. Special attention is paid to the unstable isotope H4, which was not included in previous studies. The importance of light clusters in the calculation…

Nuclear Theory · Physics 2018-12-27 Andrey Yudin , Matthias Hempel , Sergei Blinnikov , Dmitriy Nadyozhin , Igor Panov

Beam deflection is capable of providing valuable information about the magnetic moments of molecules and clusters as well as the relaxation dynamics of their spins. However, observations have been hampered by magnetic couplings to excited…

Atomic and Molecular Clusters · Physics 2025-08-13 Benjamin S. Kamerin , Thomas H. Villers , John W. Niman , Jiahao Liang , Angel I. Pena Dominguez , Vitaly V. Kresin

We report the formation of stable nanoparticle-polymer clusters obtained by electrostatic complexation. The nanoparticles placed under scrutiny are nanoceria (CeO2) coated by short poly(acrylic acid) moieties, whereas the polymers are…

Materials Science · Physics 2010-02-11 J. Fresnais , C. Lavelle , J. -F. Berret

We introduce a global optimization approach for binary clusters that for a given cluster size is able to directly search for the structure and composition that has the greatest stability. We apply this approach to binary Lennard-Jones…

Other Condensed Matter · Physics 2007-05-23 Jonathan P. K. Doye , Lars Meyer

A great deal of research work has been undertaken in alpha-clustering study since the pioneering discovery of 12C+12C molecular resonances half a century ago. Our knowledge on physics of nuclear molecules has increased considerably and…

Nuclear Experiment · Physics 2016-12-21 C. Beck

High-resolution mass spectra of helium droplets doped with C$_{60}$ and formic acid (FA) are ionized by electrons. Positive ion mass spectra reveal cluster ions [(C$_{60}$)$_p$FA$_n$]$^+$ together with their hydrogenated and dehydrogenated…

Atomic and Molecular Clusters · Physics 2022-11-21 Masoomeh Mahmoodi-Darian , Elias Jabbour Al Maalouf , Samuel Zöttl , Paul Scheier , Olof Echt

Iron based industrial steels typically contain a large number of alloying elements, even so-called low alloyed steels. Under irradiation, these alloying elements form clusters that have a detrimental impact of the mechanical properties of…

Materials Science · Physics 2025-01-15 Giovanni Bonny , Christophe Domain , Nicolas Castin , Pär Olsson , Lorenzo Malerba

Targeting specific technological applications requires the control of nanoparticle properties, especially the crystalline polymorph. Freezing a nanodroplet deposited on a solid substrate leads to the formation of crystalline structures. We…

Soft Condensed Matter · Physics 2018-03-02 Julien Lam , James F. Lutsko

Alkali dimers, $\mathrm{Ak}_2$, residing on the surface of He nanodroplets are doubly ionized due to multiphoton absorption from an intense, 50-fs laser pulse leading to fragmentation into a pair of alkali cations. Based on the measured…

We present the results of self-consistent calculations of the electronic shell and supershell structure for clusters having up to 6000 valence electrons. The ionic background is described in terms of a homogeneous jellium. The calculations…

Condensed Matter · Physics 2009-10-28 Erik Koch , Olle Gunnarsson

We study the problem of the stability of a two-component droplet. The standard solution known from the literature is based on a particular form of the mean field energy functional, in particular on distinction of hard mode and soft mode…

Quantum Gases · Physics 2021-01-18 Paweł Zin , Maciej Pylak , Mariusz Gajda

The distribution of mass on galaxy cluster scales is an important test of structure formation scenarios, providing constraints on the nature of dark matter itself. Several techniques have been used to probe the mass distributions of…

Astrophysics · Physics 2009-11-11 Lindsay King , Virginia Corless

The structure and stability of small hydrogen clusters adsorbed on graphene is studied by means of Density Functional Theory (DFT) calculations. Clusters containing up to six H atoms are investigated systematically -- the clusters having…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 Zeljko Sljivancanin , Mie Andersen , Liv Hornekaer , Bjork Hammer

The existence of shell structure and the accompanying high degeneracy of electronic levels leads to the possibility of strong superconducting pairing in metallic nanoclusters with N~100-1000 delocalized electrons. The most favorable cases…

Superconductivity · Physics 2009-11-11 Vladimir Z. Kresin , Yurii N. Ovchinnikov

We model the stabilization of clusters and lattices of cuboidal particles with long-ranged magnetic dipolar and short-ranged surface interactions. Two realistic systems were considered: one with magnetization orientated in the [001]…

Soft Condensed Matter · Physics 2020-09-09 Igor Stankovic , Luis Lizardi , Carlos Garcia

The solvation process of an alkali ion (Na$^+$, K$^+$, Rb$^+$, Cs$^+$) inside a superfluid $^4$He$_{2000}$ nanodroplet is investigated theoretically using liquid $^4$He time-dependent density functional theory at zero temperature. We…

Atomic and Molecular Clusters · Physics 2025-07-22 Ernesto García-Alfonso , Manuel Barranco , Martí Pi , Nadine Halberstadt

We perform numerical analysis of a finite nanoparticle array, in which the transversal dipolar polarizations are excited by a homogenous optical field. Considering the linearly long-range dipole-dipole interaction and the cubic dipole…

Optics · Physics 2014-11-18 Zhijie Mai , Shenhe Fu , Yongyao Li , Xing Zhu , Yikun Liu , Juntao Li

A review is given on the studies of formation of light clusters and heavier fragments in heavy-ion collisions at incident energies from several tens of MeV/nucleon to several hundred MeV/nucleon, focusing on dynamical aspects and on…

Nuclear Theory · Physics 2019-03-05 Akira Ono

Since the discovery of molecular resonances in $^{12}$C+$^{12}$C in the early sixties a great deal of research work has been undertaken to study alpha-clustering. Our knowledge on physics of nuclear molecules has increased considerably and…

Nuclear Experiment · Physics 2019-09-16 C. Beck

The abundances of light clusters within a formalism that considers in-medium effects are calculated using several relativistic mean-field models, with both density-dependent and density-independent couplings. Clusters are introduced as new…