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相关论文: Density-functional theory study of ionic inhomogen…

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The interlayer spacings near the surface of a crystal are different from that of the bulk. As a result, the value of the ionic density in the normal direction and near to the surface shows some oscillations around the bulk value. To…

材料科学 · 物理学 2015-05-18 M. Payami , T. Mahmoodi

We have used the stabilized spin-polarized jellium model to calculate the equilibrium sizes of metal clusters. Our self-consistent calculations in the local spin-density approximation show that for an $N$-electron cluster, the equilibrium…

原子与分子团簇 · 物理学 2015-06-26 M. Payami

In this work, we have applied the self-compressed stabilized jellium model to predict the equilibrium properties of isolated thin Al, Na, and Cs slabs. To make a direct correspondence to atomic slabs, we have considered only those $L$…

材料科学 · 物理学 2015-05-13 T. Mahmoodi , M. Payami

The Ionization Potentials of small Li_N clusters are calculated with a Shell Correction Method. They are used to illustrate that, within the jellium approximation, deformed cluster shapes provide an adequate description of the observed…

原子与分子团簇 · 物理学 2009-10-31 Constantine Yannouleas , Uzi Landman

In this paper, we have considered the mechanical stability of a jellium system in the presence of spin degrees of freedom and have generalized the stabilized jellium model, introduced by J. P. Perdew, H. Q. Tran, and E. D. Smith [Phys. Rev.…

材料科学 · 物理学 2009-10-30 M. Payami , N. Nafari

In this work, we have used the exchange-only optimized effective potential in the self-consistent calculations of the density functional Kohn-Sham equations for simple metal clusters in stabilized jellium model with self-compression. The…

原子与分子团簇 · 物理学 2009-11-11 M. Payami

We compare Kohn-Sham results (density, cohesive energy, size and effect of charging) of the Spherical Averaged Pseudopotential Model with the Stabilized Jellium Model for clusters of sodium and aluminum with less than 20 atoms. We find that…

凝聚态物理 · 物理学 2009-10-30 Armando Vieira , M. Begona Torres , Carlos Fiolhais , L. Carlos Balbas

To understand the electronic shell- and supershell-structure in large metal clusters we have performed self-consistent calculations in the homogeneous, spherical jellium model for a variety of different materials. A scaling analysis of the…

凝聚态物理 · 物理学 2009-10-28 Erik Koch

This work is devoted to the elucidation the applicability of jellium model to the description of alkali cluster properties on the basis of comparison the jellium model results with those derived from experiment and within ab initio…

原子与分子团簇 · 物理学 2009-09-29 Anton Matveentsev , Andrey Lyalin , Ilia A Solov'yov , Andrey V Solov'yov , Walter Greiner

In this work, we have used the liquid-drop model in the context of stabilized jellium model, to study the stability of $Z$-ply charged metal clusters of different species against fragmentation. We have shown that on the one hand, singly…

材料科学 · 物理学 2009-11-10 M. Payami

In this work, we have shown the important role of the finite-size correction to the work function in predicting the correct positions of the centroid of excess charge in positively charged simple metal clusters with different $r_s$ values…

凝聚态物理 · 物理学 2007-05-23 M. Payami

Using the stabilized jellium model in two schemes of `relaxed' and `rigid', we have calculated the dissociation energies and the fission barrier heights for the binary fragmentations of singly-ionized and doubly-ionized Ag clusters. In the…

材料科学 · 物理学 2009-11-10 M. Payami

Gold clusters Aun of size n = 2 to 12 atoms were studied by the density-functional theory with an ab-initio pseudopotential and a generalized gradient approximation. Geometry optimizations starting from a number of initial candidate…

其他凝聚态物理 · 物理学 2007-05-23 Prashant K. Jain

The hot gas that fills the space between galaxies in clusters is rich in metals. In their large potential wells, galaxy clusters accumulate metals over the whole cluster history and hence they retain important information on cluster…

宇宙学与河外天体物理 · 物理学 2015-05-27 L. Lovisari , S. Schindler , W. Kapferer

We developed a new physical model to predict macroscopic properties of inorganic molten systems using a realistic description of inter-atomic interactions. Unlike the conventional approach, which tends to overestimate viscosity by several…

材料科学 · 物理学 2015-06-04 Vitaly V. Chaban , Yuriy V. Pereverzev , Oleg V. Prezhdo

We have investigated structure and properties of small metal clusters using all-electron ab initio theoretical methods based on the Hartree-Fock approximation and density functional theory, perturbation theory and compared results of our…

原子与分子团簇 · 物理学 2009-11-07 Ilia A. Solov'yov , Andrey V. Solov'yov , Walter Greiner

The effect of external strain on surface properties of simple metals is considered within the modified stabilized jellium model. The equations for the stabilization energy of the deformed Wigner-Seitz cells are derived as a function of the…

介观与纳米尺度物理 · 物理学 2009-11-07 V. V. Pogosov , V. P. Kurbatsky

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…

凝聚态物理 · 物理学 2009-10-28 Erik Koch , Olle Gunnarsson

The optimized structure and electronic properties of neutral and singly charged magnesium clusters have been investigated using ab initio theoretical methods based on density-functional theory and systematic post-Hartree-Fock many-body…

原子与分子团簇 · 物理学 2009-09-29 Andrey Lyalin , Ilia A Solov'yov , Andrey V Solov'yov , Walter Greiner

We examine thin films of two simple metals (aluminum and lithium) in the stabilized jellium model, a modification of the regular jellium model in which a constant potential is added inside the metal to stabilize the system for a given…

材料科学 · 物理学 2009-10-31 I. Sarria , C. Henriques , C. Fiolhais , J. M. Pitarke
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