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A major challenge in the field of nanosciences is the assembly of anisotropic nano objects into aligned structures. The way the objects are aligned determines the physical properties of the final material. In this work, we take a closer…

Materials Science · Physics 2016-04-19 Ulla Vainio

The physical properties of magnetic nanoparticles have been investigated with focus on the influence of dipolar interparticle interaction. For weakly coupled nanoparticles, thermodynamic perturbation theory is employed to derive analytical…

Materials Science · Physics 2016-08-31 Petra E. Jönsson

Molecular dynamics simulations are used to study the phase behavior of a single linear multiblock copolymer with blocks of A- and B-type monomers under poor solvent conditions, varying the block length $N$, number of blocks $n$, and the…

Soft Condensed Matter · Physics 2011-02-25 P. E. Theodorakis , N. G. Fytas

Initial conditions in cosmological $N$-body simulations are typically generated by displacing particles from a regular cubic lattice using a correlated field derived from the linear power spectrum, often via the Zel'dovich approximation.…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-09 Francesco Sylos Labini

In this work, we investigate the influence of the anisotropic heating on the spontaneous instability and evolution of thin Harris-type collisionless current sheets, embedded in antiparallel magnetic fields. In particular, we explore the…

Plasma Physics · Physics 2015-01-27 P. A. Muñoz , P. Kilian , J. Büchner

Using molecular dynamics simulations, we show that an asymmetrically shaped nanoparticle in dilute solution possesses a spontaneously curved trajectory within finite time interval, instead of the generally expected random walk. This…

Soft Condensed Matter · Physics 2016-10-13 Nan Sheng , YuSong Tu , Pan Guo , RongZheng Wan , ZuoWei Wang , HaiPing Fang

At sufficiently low temperatures and high densities, repulsive spherical particles in two-dimensions (2d) form close-packed structures with six-fold symmetry. By contrast, when the interparticle interaction has an attractive anisotropic…

Soft Condensed Matter · Physics 2018-09-13 T. Geigenfeind , C. S. Dias , M. M. Telo da Gama , D. de las Heras , N. A. M. Araújo

Heterogeneous distribution of passive and active domains in the chromosome plays a crucial role for its dynamic organization within the cell nucleus. Motivated by that here we investigate the steady-state conformation and dynamics of a…

Soft Condensed Matter · Physics 2024-09-27 Suman Majumder , Subhajit Paul

We consider the rotation of neutrally buoyant axisymmetric particles suspended in isotropic turbulence. Using laboratory experiments as well as numerical and analytical calculations, we explore how particle rotation depends upon particle…

Fluid Dynamics · Physics 2015-06-09 M. Byron , J. Einarsson , K. Gustavsson , G. Voth , B. Mehlig , E. Variano

Bimetallic nanoparticles (often known as nanoalloys) with core-shell arrangement are of special interest in several applications, such as in optics, catalysis, magnetism and biomedicine. Despite wide interest in applications, the physical…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Davide Bochicchio , Riccardo Ferrando

Analytical solution has been found for the second-order effective anisotropy of magnetic nanoparticles of a cubic shape due to the surface anisotropy (SA) of the N\'eel type. Similarly to the spherical particles, for the simple cubic…

Mesoscale and Nanoscale Physics · Physics 2018-09-12 D. A. Garanin

Hard models for particle interactions have played a crucial role in the understanding of the structure of condensed matter. In particular, they help to explain the formation of oriented phases in liquids made of anisotropic molecules or…

Soft Condensed Matter · Physics 2015-06-22 Luis Mederos , Enrique Velasco , Yuri Martinez-Raton

We consider the thermodynamically driven self-assembly of spheres onto the surface of a central sphere. This assembly process forms self-limiting, or terminal, anisotropic clusters (N-clusters) with well defined structures. We use Brownian…

Soft Condensed Matter · Physics 2015-06-03 Carolyn L. Phillips , Eric Jankowski , Michelle Marval , Sharon C. Glotzer

We revisit the theory of magnetoresistance for a system of nanoscopic magnetic granules in metallic matrix. Using a simple model for the spin dependent perturbation potential of the granules, we solve Boltzmann equation for the spin…

Materials Science · Physics 2007-05-23 J. Viana Lopes , J. M. B. Lopes dos Santos , Yu. G. Pogorelov

We systematically explore the self-assembly of semi-flexible polymers in deformable spherical confinement across a wide regime of chain stiffness, contour lengths and packing fractions by means of coarse-grained molecular dynamics…

Soft Condensed Matter · Physics 2021-07-12 Maxime M. C. Tortora , Daniel Jost

Molecular dynamics simulations are used to study the phase behavior of linear multiblock copolymers with two types of monomers, A and B, where the length of the polymer blocks $N_{A}$ and $N_{B}$ ($N_{A}=N_{B}=N$), the number of the blocks…

Soft Condensed Matter · Physics 2011-02-04 Panagiotis E. Theodorakis , Nikolaos G. Fytas

The organization of nano-particles inside grafted polymer layers is governed by the interplay of polymer-induced entropic interactions and the action of externally applied fields. Earlier work had shown that strong external forces can drive…

Soft Condensed Matter · Physics 2016-08-04 Tine Curk , Francisco J. Martinez-Veracoechea , Daan Frenkel , Jure Dobnikar

We perform numerical simulations of solid particle motion in a shearing box model of a protoplanetary disc. The accretion flow is turbulent due to the action of the magnetorotational instability. Aerodynamic drag on the particles is…

Astrophysics · Physics 2009-11-13 Augusto Carballido , James M. Stone , Neal J. Turner

In frameworks of the scaling theory of phase transitions and critical phenomena the quantitative dependence of macroscopic properties on nanostructural parameters in a polymeric material is revealed. The draw ratios at neck and at break are…

Soft Condensed Matter · Physics 2012-10-30 Andrei N. Yakunin

Nanoparticles with different surface morphologies that straddle the interface between two immiscible liquids are studied via molecular dynamics simulations. The methodology employed allows us to compute the interfacial free energy at…

Soft Condensed Matter · Physics 2016-04-27 Sepideh Razavi , Ilona Kretzschmar , Joel Koplik , Carlos E. Colosqui