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The atomic orbital basis and atomic pseudopotential for electron-ion interaction in framework of density function theory used to calculate C70H84 spin polarized diamond cluster with neutral vacancy. The band gap has been found to be 1.70…

Materials Science · Physics 2012-02-28 S. Sheikholeslami , A. Shafiekhani

The imposition of crystalline symmetries is known to lead to a rich variety of insulating and superconducting topological phases. These include higher-order topological phases and obstructed atomic limits with and without filling anomalies.…

Mesoscale and Nanoscale Physics · Physics 2024-12-04 Adam Yanis Chaou , Mateo Moreno-Gonzalez , Alexander Altland , Piet W. Brouwer

To reproduce the diamond structure of silicon, double lattice (DL) potential constructed from two interatomic potentials for face centered cubic (fcc) lattice, is proposed for molecular dynamics (MD) simulations. For the validity test of MD…

Materials Science · Physics 2020-08-12 Hui Zhang , Chongyang Wei , Zhongwu Liu , Xichun Zhong , Dongling Jiao , Wanqi Qiu , Hongya Yu

Two possible phases of superhard material BC3 originating from the cubic diamond structure are investigated by ab initio pseudopotential density functional method using generalized gradient approximation (GGA). We calculate their elastic…

Superconductivity · Physics 2010-02-06 M. M. Ali , A. K. M. A. Islam , F. Parvin , M. Aftabuzzaman

Capturing twin nucleation in full-field crystal plasticity is a long-standing problem in materials science. The challenge resides mainly in the biased regional lattice transformation associated with twin formation in defiance of its…

Materials Science · Physics 2022-02-01 Deepesh Giri , Haitham El Kadiri , Christopher Barrett

We report a characterization of the relative stability and structural behavior of various micellar crystals of an athermal model of AB-diblock copolymers in solution. We adopt a previously devel- oped coarse-graining representation of the…

Computational Physics · Physics 2015-03-19 Giuseppe D'Adamo , Carlo Pierleoni

Ultra-nanocrystalline diamond is a polycrystalline material, having crystalline diamond grains of sizes in the nanometer regime. We study the structure and mechanical properties of this material as a function of the average grain size,…

Materials Science · Physics 2008-07-16 Ioannis N. Remediakis , Georgios Kopidakis , Pantelis C. Kelires

In this study, the structural, electronic and vibrational properties of thinnest possible Cadmium crystal are investigated by performing first-principle calculations. Total energy optimization and dynamic stability calculations reveal that…

Materials Science · Physics 2024-01-25 Arda Gulucu , Hasan Sahin

The kinetic paths of structural evolution and formation of block copolymer (BCP) particles are explored using dynamic self-consistent field theory (DSCFT). It is shown that the process-directed self-assembly of BCP immersed in a poor…

Soft Condensed Matter · Physics 2023-08-03 Yanyan Zhu , Changhang Huang , Liangshun Zhang , David Andelman , Xingkun Man

Topological semimetals, including Dirac semimetals, Weyl semimetals, and nodal line semimetals, receive enormous research interest due to their intrinsic topological nature and fascinating properties. In present work, with the help of…

Materials Science · Physics 2017-10-17 P. Zhou , Z. S. Ma , L. Z. Sun

Heterointerfaces of cubic boron nitride (cBN) with diamond have garnered significant interest due to their ultra-wide bandgaps and small lattice mismatch ($\sim1.5$\%), offering promising advancements in high-power and high-frequency…

The phase behavior of symmetric diblock copolymers under three-dimensional (3D) soft confinement is investigated using the self-consistent field theory. The soft confinement is realized in binary blends composed AB diblock copolymers and C…

Soft Condensed Matter · Physics 2024-08-28 Zhijuan He , Jin Huang , Kai Jiang , An-Chang Shi

In this note I review the role played by dualities in the Supermembrane Theory compactified on a torus. Supermembrane theory realize S, T, so U-duality, as exact symmetries of the theory. There are two well defined sectors: with and without…

High Energy Physics - Theory · Physics 2012-11-28 M. P. Garcia del Moral

Mirror twin boundary (MTB) brings unique 1D physics and properties into two-dimensional transition metal dichalcogenides (TMDCs), but they were rarely observed in non-Mo-based TMDCs. Herein, by post-growth Nb doping, high density 4|4E-W and…

Materials Science · Physics 2020-01-16 Bo Wang , Yipu Xia , Junqiu Zhang , Hannu-Pekka Komsa , Maohai Xie , Yong Peng , Chuanhong Jin

"Dominos" are special entities consisting of a hard dimer-like kernel surrounded by a soft hull and governed by local interactions. "Soft hull" and "hard kernel" mean that the hulls can overlap while the kernel acts under a repulsive…

Combinatorics · Mathematics 2023-05-09 Dominique Désérable , Rolf Hoffmann , Franciszek Seredyński

We propose, for the first time, that an array of diamond plaquettes, each possessing vanishing net magnetization, can achieve complete spin polarization over a broad bias window. Furthermore, this system can be utilized to realize…

Mesoscale and Nanoscale Physics · Physics 2025-05-28 Debjani Das Gupta , Santanu K. Maiti

Under high pressures, phase transition, as well as deformation twins, are constantly reported in many BCC metals, whose interactions are of fundamental importance to understand strengthen mechanism of these metals under extreme conditions.…

Materials Science · Physics 2017-10-11 Kun Wang , Jun Chena , Xueyang Zhang , Wenjun Zhu

Ridged, orthorhombic two-dimensional atomic crystals with a bulk {\em Pnma} structure such as black phosphorus and monochalcogenide monolayers are an exciting and novel material platform for a host of applications. Key to their…

The phase behavior of polydisperse ABA triblock copolymers is studied using dissipative particle dynamics simulations, focusing on the emergence and property of bicontinuous structures. Bicontinuous structures are characterized by two…

Soft Condensed Matter · Physics 2013-10-23 Yue Li , Hu-Jun Qian , Zhong-Yuan Lu , An-Chang Shi

We develop a simple coarse-grained bead-spring polymer model exhibiting competing crystallization and glass transitions. For quench rates slower than the critical nucleation rate $|\dot{T}|_{crit}$, systems exhibit a first-order…

Soft Condensed Matter · Physics 2013-03-25 Robert S. Hoy , Nikos Ch. Karayiannis