Role of long-range interactions in the melting of a metallic surface

Pluis, B.; Taylor, T.N.; Frenkel, Daan; Veen, J. F. van der

doi:10.1103/physrevb.40.1353

Cited by 119 publications

(47 citation statements)

References 9 publications

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“…where γ sl (δ) = γ sl +∆γ sl exp (−δ/ξ) and ξ is a correlation length that describes the thickness dependence of the interfacial energy in thin metallic liquid films [16] (in Pb, for example, ξ has been measured to be ∼ 0.6 nm [19]). As the surface melting proceeds, the curvature of the particle will relax to minimize the free energy i.e R * = R * (δ) where R * minimizes the free energy F for a given δ.…”

Section: Melting and Surface Meltingmentioning

confidence: 99%

A thermodynamic model for the melting of supported metal nanoparticles

Hendy¹

2007

Nanotechnology

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We construct a simple thermodynamic model to describe the melting of a supported metal nanoparticle with a spherically curved free surface both with and without surface melting. We use the model to investigate the results of recent molecular dynamics simulations, which suggest the melting temperature of a supported metal particle is the same as that of a free spherical particle with the same surface curvature. Our model shows that this is only the case when the contact angles of the supported solid and liquid particles are similar. This is also the case for the temperature at which surface melting begins.

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Section: Melting and Surface Meltingmentioning

confidence: 99%

A thermodynamic model for the melting of supported metal nanoparticles

Hendy¹

2007

Nanotechnology

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“…Applying Landau theory to a semi-infinite system, [13,14] have shown that surface melting may induce critical phenomena. Later, [15,16,17] have studied surface melting of semiinfinite systems both experimentally and theoretically, and good agreement was found between experiments and the two-parabola Landau model. Surface melting of finite systems has been studied experimentally by means of electron transmission microscopy (TEM) [12,18,19] and X-ray techniques [20,21] however only few theoretical studies have been reported [22].…”

Section: Introductionmentioning

confidence: 98%

Surface and bulk melting of small metal clusters

Chang

Johnson

2005

Philosophical Magazine

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We present an analytical solution to the two-parabola Landau model, applied to melting of metal particles with sizes in the nanoscale range. The results provide an analytical understanding of the recently observed pseudo-crystalline phase of nanoscale Sn particles. Liquid skin formation as a precursor of melting is found to occur only for particles with radii, greater than an explicitly given critical radius. The size effect of the melting temperature and the latent heat has been calculated and quantitative agreement with experiments on Sn particles was found.

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“…(5) • . Figure 14 shows that the surface melting of Pb(110) can be divided into two regimes with different scaling behavior [140]. number of molten layers REGIME II REGIME I Fig.…”

Section: Wwwann-physorg 7 Surface Meltingmentioning

confidence: 99%

“…number of molten layers REGIME II REGIME I Fig. 14 Half-logarithmic plot of the surface density of molten atoms on Pb(110) derived from MEIS surface peak areas as a function of Tm − T [140]. This density can be interpreted as number of molten layers.…”

Section: Wwwann-physorg 7 Surface Meltingmentioning

confidence: 99%

Thermal dynamics at surfaces

Brune¹

2009

Ann. Phys.

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The present paper describes what happens at the surface of a crystal as its temperature steadily increases from zero Kelvin close to the bulk melting temperature. We treat thermal motion, such as the diffusion of individual adatoms establishing mass transport, the formation of adatom or vacancy gases coexisting with islands or steps of the condensed phase, surface phonons and the anharmonicity of the surface potential being markedly different from the one in bulk, as well as thermally induced reconstructions, surface roughening, and finally surface melting, which usually well precedes bulk melting. The paper intends to give an overview with references to the original and review literature.

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Role of long-range interactions in the melting of a metallic surface

Cited by 119 publications

References 9 publications

A thermodynamic model for the melting of supported metal nanoparticles

A thermodynamic model for the melting of supported metal nanoparticles

Surface and bulk melting of small metal clusters

Thermal dynamics at surfaces

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