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The local nuclear and magnetic structure of wustite, Fe1-xO, and the coupling between them, has been examined using reverse Monte Carlo refinements of variable-temperature neutron total scattering data. The results from this analysis…

Materials Science · Physics 2015-06-17 Paul J. Saines , Matthew G. Tucker , David A. Keen , Anthony K. Cheetham , Andrew L. Goodwin

We study the property of alpha-aggregates on a soap bubble shape within a microscopic framework, which takes full account of the Pauli principle. Our special attention is payed to the Coulomb energy for such an exotic shapes of nuclei, and…

Nuclear Theory · Physics 2018-07-11 Akihiro Tohsaki , Naoyuki Itagaki

We review recent studies of the cluster structure of light nuclei within the framework of the algebraic cluster model (ACM) for nuclei composed of k alpha-particles and within the framework of the cluster shell model (CSM) for nuclei…

Nuclear Theory · Physics 2020-11-04 R. Bijker , F. Iachello

Stability of 248-254^Cf nuclei against alpha and cluster emission is studied within our Coulomb and proximity potential model (CPPM). It is found that these nuclei are stable against light clusters (except alpha particle) and instable…

Nuclear Theory · Physics 2015-06-15 K. P. Santhosh , R. K. Biju

Searches for low-energy tetrahedral polymorphs of carbon and silicon have been performed using density functional theory computations and the ab initio random structure searching (AIRSS) ap- proach. Several of the hypothetical phases…

Materials Science · Physics 2015-08-12 Andres Mujica , Chris J. Pickard , Richard J. Needs

The theoretical formalism of the local density approximation (LDA) to density functional theory (DFT) has been used to study the electronic and geometric structures of SimCn (1<=m, n<=4;n<=m) clusters. An all electron 6-311++G** basis set…

Atomic and Molecular Clusters · Physics 2007-05-23 Prachi Pradhan , Asok K. Ray

Retaining the combinatorial Euclidean structure of a regular icosahedron, namely the 20 equiangular (planar) triangles, the 30 edges of length 1, and the 12 different vertices together with the incidence structure, we investigate variations…

We studied structures formed by a single $(AB)_k$ multiblock copolymer chain, in which interaction between A-type beads was purely repulsive, and B-type beads tended to aggregate. We studied how attraction between A-type beads and B-type…

Soft Condensed Matter · Physics 2020-11-16 Artem Petrov , Alexey Gavrilov , Alexander Chertovich

The structural properties of the simulated $\rm Cu_{\alpha}Zr_{1-\alpha}$ glassy alloys are studied in the wide range of the copper concentration $\alpha$ to clarify the impact of the composition on the number density of the icosahedral…

Materials Science · Physics 2016-11-23 B. A. Klumov , R. E. Ryltsev , N. M. Chtchelkatchev

This work proposes a new approach to study transport properties of highly correlated local structures. The method, dubbed the Logarithmic Discretization Embedded Cluster Approximation (LDECA), consists of diagonalizing a finite cluster…

Strongly Correlated Electrons · Physics 2009-11-13 E. V. Anda , G. Chiappe , C. A. Busser , M. A. Davidovich , G. B. Martins , F. Heidrich-Meisner , E. Dagotto

The electronic properties of two-dimensional transition metal dichalcogenides (2D TMDs) have attracted much attention during the last decade. We show how a diagrammatic ab initio coupled cluster singles and doubles (CCSD) treatment paired…

Materials Science · Physics 2020-07-01 Artem Pulkin , Garnet Kin-Lic Chan

The Airy structure of the nuclear rainbow and prerainbow in inelastic and elastic $\alpha+^{16}$O scattering is studied with the coupled channel method using a folding potential derived from the microscopic wave functions of $^{16}$O. The…

Nuclear Theory · Physics 2013-07-19 Y. Hirabayashi , S. Ohkubo

More than 100 excited states of the Calcium-40 nucleus, with isospin 0, are classified into rotational-vibrational bands of an intrinsic tetrahedral structure. Almost all observed states below 8 MeV can be accommodated, as well as many…

Nuclear Theory · Physics 2020-07-15 N. S. Manton

The freezing behavior of gold nanoclusters was studied by employing molecular dynamics simulations based on a semi-empirical embedded-atom method. Investigations of the gold nanoclusters revealed that, just after freezing, ordered…

Atomic and Molecular Clusters · Physics 2009-11-07 H. -S. Nam , Nong M. Hwang , B. D. Yu , J. -K. Yoon

Starting from the microscopic low-momentum nucleon-nucleon interaction V{low k}, we present the first systematic shell model study of magnetic moments and magnetic dipole transition strengths of the basic low-energy one-quadrupole phonon…

Nuclear Theory · Physics 2008-11-26 J. D. Holt , N. Pietralla , J. W. Holt , T. T. S. Kuo , G. Rainovski

To advance Thomson problem we generalize physical principles suggested by Caspar and Klug (CK) to model icosahedral capsids. Proposed simplest distortions of the CK spherical arrangements yield new-type trial structures very close to the…

Soft Condensed Matter · Physics 2014-11-21 D. S. Roshal , A. E. Myasnikova , S. B. Rochal

In this study, we have obtained the exact solutions of the Schr\"{o}dinger equation for a multi-layered quantum antidot (MLQAD) within the effective mass approximation and dielectric continuum model for the spherical symmetry. The MLQAD is…

Mesoscale and Nanoscale Physics · Physics 2013-01-15 Yaghoob Naimi , A. R. Jafari

We extend the spherical coupled-cluster ab initio method for open-shell nuclei where two nucleons are removed from a shell subclosure. Following the recent implementation of the two-particle attached approach [Phys. Rev.C 110 (2024) 4,…

Nuclear Theory · Physics 2026-02-06 Francesco Marino , Francesca Bonaiti , Sonia Bacca , Gaute Hagen , Gustav R. Jansen

We theoretically and numerically studied ordering of "colloidal ionic clusters" on periodic substrate potentials as those generated by optical trapping. Each cluster consists of three charged spherical colloids: two negatively and one…

Soft Condensed Matter · Physics 2015-05-27 Samir El Shawish , Jure Dobnikar , Emmanuel Trizac

Exotic cluster decay of very heavy nuclei is studied using the microscopic nuclear potentials obtained by folding density dependent M3Y effective interaction with the densities of the cluster and the daughter nuclei. The microscopic nuclear…

Nuclear Theory · Physics 2009-06-24 T. R. Routray , Jagajjaya Nayak , D. N. Basu