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Surprisingly large spontaneous electric dipole moments recently observed in homonuclear niobium clusters below 100 K (Moro el. al. Science 300, 1265 (2003)) are explained using first-principles electronic structure calculations. The…

Materials Science · Physics 2009-11-10 Kristopher Andersen , Vijay Kumar , Yoshiyuki Kawazoe , Warren Pickett

With scanning tunneling microscopy, we study the very early stage of Si deposition on a Pb monolayer covered Si(111) surface. We find a special type of Si magic clusters which are highly mobile on the defect-free surface but may be trapped…

The proper design of DNA sequences allows for the formation of well defined supramolecular units with controlled interactions via a consecution of self-assembling processes. Here, we benefit from the controlled DNA self-assembly to…

Soft Condensed Matter · Physics 2018-02-14 Javier Fernandez-Castanon , Francesca Bomboi , Francesco Sciortino

Peptides and proteins exhibit a common tendency to assemble into highly ordered fibrillar aggregates, whose formation proceeds in a nucleation-dependent manner that is often preceded by the formation of disordered oligomeric assemblies.…

Biomolecules · Quantitative Biology 2009-01-14 Stefan Auer , Christopher M. Dobson , Michele Vendruscolo , Amos Maritan

We investigate the early part of the crystal nucleation process in the hard sphere fluid using data produced by computer simulation. We find that hexagonal order manifests continuously in the overcompressed liquid, beginning approximately…

Soft Condensed Matter · Physics 2016-06-29 Joshua T. Berryman , Muhammad Anwar , Sven Dorosz , Tanja Schilling

For understanding an anomalous nuclear effect experimentally observed for the beryllium-9 nucleus at the Thomas Jefferson National Accelerator Facility (JLab), clustering aspects are studied in structure functions of deep inelastic…

High Energy Physics - Phenomenology · Physics 2011-03-23 M. Hirai , S. Kumano , K. Saito , T. Watanabe

NaCl crystal nucleation from metastable solutions has long been considered to occur according to a single-step mechanism. Recent experimental observations suggest that NaCl crystals emerge from disordered intermediates which is seemingly at…

Materials Science · Physics 2022-10-12 Aaron R. Finney , Matteo Salvalaglio

Because of its promising contribution to the bottom-up approach for nanofabrication of complex molecular architectures, self-organization is widely studied nowadays. Numerous studies have tackled supramolecular chirality or low-dimensional…

Materials Science · Physics 2007-05-23 T. Zambelli , S. Goudeau , J. Lagoute , A. Gourdon , X. Bouju , S. Gauthier

Transition-metal atoms with d electrons sometimes form clusters in crystals, which significantly affects the physical properties. Such a cluster formation frequently accompanies a change in the crystal system, leading to the presence of…

Strongly Correlated Electrons · Physics 2024-03-13 Shunsuke Kitou , Masaki Gen , Yuiga Nakamura , Yusuke Tokunaga , Taka-hisa Arima

We study the conditions under which and how an imposed cluster of fixed colloidal particles at prescribed positions triggers crystal nucleation from a metastable colloidal fluid. Dynamical density functional theory of freezing and Brownian…

Soft Condensed Matter · Physics 2009-11-13 Sven van Teeffelen , Christos N. Likos , Hartmut Löwen

Nucleation is an activated process in which the system has to overcome a free energy barrier in order for a first-order phase transition between the metastable and the stable phases to take place. In the liquid-to-solid transition the…

Soft Condensed Matter · Physics 2016-11-28 John Russo , Hajime Tanaka

We report on the nucleation of bubbles on solids that are gently rubbed against each other in a liquid. The phenomenon is found to depend strongly on the material and roughness of the solid surfaces. For a given surface, temperature, and…

Fluid Dynamics · Physics 2016-04-18 Sander Wildeman , Henri Lhuissier , Chao Sun , Detlef Lohse , Andrea Prosperetti

We introduce and analyse a variant of the Becker-D{\"o}ring equations that models the growth of clusters through the gain or loss of monomers. Motivated by enzymatic reactions in biology, this model incorporates irreversible fragmentation…

Analysis of PDEs · Mathematics 2025-08-12 Simon Loin

We apply ideas from renormalization theory to models of cluster formation in nucleation and growth processes. We study a simple case of the Becker-Doring system of equations and show how a novel coarse-graining procedure applied to the…

Statistical Mechanics · Physics 2009-10-31 Peter V. Coveney , Jonathan A. D. Wattis

Nucleation during solidification in multi-component alloys is a complex process that comprises the competition between different crystalline phases as well as chemical composition and ordering. Here, we combine transition interface sampling…

Materials Science · Physics 2020-06-24 Yanyan Liang , Grisell Díaz Leines , Ralf Drautz , Jutta Rogal

A novel computational treatment of dense, stiff, coupled reaction rate equations is introduced to study the nucleation, growth, and possible coalescence of cavities during neutron irradiation of metals. Radiation damage is modeled by the…

Materials Science · Physics 2009-11-13 Michael P. Surh , Jess B. Sturgeon , Wilhelm G. Wolfer

We study the Becker-D\"oring bubblelator, a variant of the Becker-D\"oring coagulation-fragmentation system that models the growth of clusters by gain or loss of monomers. Motivated by models of gas evolution oscillators from physical…

Analysis of PDEs · Mathematics 2021-09-28 Barbara Niethammer , Robert L. Pego , André Schlichting , Juan J. L. Velázquez

The fluid phase diagram of trimer particles composed of one central attractive bead and two repulsive beads was determined as a function of simple geometric parameters using flat-histogram Monte Carlo methods. A variety of self-assembled…

Soft Condensed Matter · Physics 2015-05-20 Harold W. Hatch , Jeetain Mittal , Vincent K. Shen

We study crystallization in a model system for eicosane (C20) by means of molecular dynamics simulation and we identify the microscopic mechanisms of homogeneous crystal nucleation and growth. For the nucleation process, we observe that…

Soft Condensed Matter · Physics 2013-12-18 Muhammad Anwar , Francesco Turci , Tanja Schilling

By means of a diffusion Monte Carlo technique, we study one-dimensional unbalanced mixtures of fermionic Ytterbium atoms ($^{173}$Yb, $^{171}$Yb). This means clusters in which the total number of $^{173}$Yb particles is different from the…

Quantum Gases · Physics 2024-11-27 M. C. Gordillo