搜索结果: 1-15 共查到“物理学 Clusters”相关记录36条 . 查询时间(0.084 秒)
Hierarchical Multiple Bit Clusters and Patterned Media Enabled by Novel Nanofabrication Techniques - High Resolution Electron Beam Lithography and Block Polymer Self Assembly
Diblock copolymer E-beam lithography Magnetism Multiple state cluster Nanofabrication Self assembly
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2014/11/20
This thesis discusses the full scope of a project exploring the physics of hierarchical clusters of interacting nanomagnets. These clusters may be relevant for novel applications such as multilevel da...
Modeling core-hole screening in jellium clusters using density functional theory
Modeling core-hole screening jellium clusters density functional theory
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2012/2/28
The screening of a 2p core-hole in Na clusters is investigated using density functional theory applied to an extended jellium model with an all-electron atom in the center. The study is related to rec...
Direct imaging of thermally excited metastable structures of ion Coulomb clusters
Direct imaging thermally excited metastable structures ion Coulomb clusters
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2012/2/28
Coulomb crystallisation of large ensembles of ions has in the past years been intensively studied experimentally with many spectacular results of relevance to infinite systems in one-, two-, and three...
A <= 6 helium clusters using soft core potentials
helium clusters soft core potentials
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2011/7/21
In this work we investigate small clusters of helium atoms using the hyperspherical harmonic basis.
Linear chain structure of four-$α$ clusters in $^{16}$O
four-$α$ Linear chain structure
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2011/7/20
We investigate the linear-chain configurations of four-$\alpha$ clusters in $^{16}$O using a Skyrme cranked Hartree-Fock method and discuss the relationship between the stability of such states and an...
A fast Variational Gaussian Wave-packet method: Size-induced structural transitions in large neon clusters
Variational Gaussian Wave-packet method Size-induced structural transitions large neon clusters
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2011/8/17
Abstract: The Variational Gaussian wavepacket (VGW) method is an alternative to Path Integral Monte-Carlo (PIMC) for the computation of thermodynamic properties of many-body systems at thermal equilib...
Observation of (N2)2 dimers in free nitrogen and argon-nitrogen clusters
(N2)2 dimers free nitrogen argon-nitrogen clusters
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2011/8/4
Abstract: Supersonic-jet luminescence spectroscopy was applied to study vibronic transitions in icosahedral N2 and Ar-N2 clusters having from 100 to 400 particles per cluster. In the case of mixed Ar-...
A highly efficient measure of mass segregation in star clusters
Methods numerical star clusters mass segregation
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2011/9/30
Abstract: Investigations of mass segregation are of vital interest for the understanding of the formation and dynamical evolution of stellar systems on a wide range of spatial scales. Our method is ba...
vdW-DF Study of energetic, structural, and vibrational properties of small water clusters and ice Ih
vdW-DF small water clusters ice Ih
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2011/9/15
We present results for a density functional theory study of small water clusters and hexagonal ice Ih, using the van der Waals density functional (vdW-DF). In particular, we examine energetic,structur...
A <= 6 helium clusters using soft core potentials
helium clusters soft core potentials
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2011/9/2
In this work we investigate small clusters of helium atoms using the hyperspherical harmonic basis. We consider systems with A = 2, 3, 4, 5, 6 atoms with an inter-particle potential which does not pre...
Diffusion and growth of metal clusters in nanocomposites: a Kinetic Monte Carlo study
metal clusters, bulk and surface diffusion, agglomeration, Kinetic Monte Carlo
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2011/9/2
Nobel metals that are deposited on a polymer surface exhibit surface diffusion and diffusion into the bulk. At the same time the metal atoms tend to form clusters because their cohesive energy is abou...
Size-, shape-, and composition-dependent polarizabilities of SimCn (m, n = 1 - 4) clusters
Size shape
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2011/8/30
We theoretically investigate the size-, shape-, and composition-dependent polarizabilities of the SimCn (m, n = 1 – 4) clusters by using the density functional based coupled perturbed Hartree-Fock met...
Equilibrium Clusters in Concentrated Lysozyme Protein Solutions
equilibrium clusters, salt-free lysozyme solutions, short-range attraction and weak long-range repulsion effective potential, scattering experiments.
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2011/9/9
We have studied the structure of salt-free lysozyme at 293 K and pH 7.8 using molecular simulations and experimental SAXS effective potentials between proteins at three volume fractions, f = 0.012, 0....
Center clusters in the Yang-Mills vacuum
Center clusters the Yang-Mills vacuum
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2011/1/6
Properties of local Polyakov loops for SU(2) and SU(3) lattice gauge theory at finite temperature are analyzed. We show that spatial clusters can be identified where the local Polyakov loops have valu...
Center clusters in the Yang-Mills vacuum
Center clusters the Yang-Mills vacuum
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2011/1/6
Properties of local Polyakov loops for SU(2) and SU(3) lattice gauge theory at finite temperature are analyzed. We show that spatial clusters can be identified where the local Polyakov loops have valu...