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Related papers: Incomplete melting of the Si(100) surface from mol…

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The molecular structure of the wetting layer of ice on Pt(111) is resolved using scanning tunneling microscopy (STM). Two structures observed previously by diffraction techniques are imaged for coverages at or close to completion of the…

Materials Science · Physics 2010-10-26 Sebastian Standop , Alex Redinger , Markus Morgenstern , Thomas Michely , Carsten Busse

The photo-luminescence features of Ge-oxygen defect centers in a 100nm thick Ge-doped silica film on a pure silica substrate were investigated by looking at the emission spectra and time decay detected under synchrotron radiation excitation…

Materials Science · Physics 2009-11-13 F. Messina , S. Agnello , R. Boscaino , M. Cannas , S. Grandi , E. Quartarone

We have simulated a system of classical particles confined on the surface of a sphere interacting with a repulsive $r^{-12}$ potential. The same system simulated on a plane with periodic boundary conditions has van der Waals loops in…

Statistical Mechanics · Physics 2009-10-31 Antonio Pérez-Garrido , M. A. Moore

In this paper we revisit and update the computation of thermal corrections to the stability of the electroweak vacuum in the Standard Model. At zero temperature, we make use of the full two-loop effective potential, improved by three-loop…

High Energy Physics - Phenomenology · Physics 2017-03-15 Luigi Delle Rose , Carlo Marzo , Alfredo Urbano

The extent of hydrogen coverage of the Si(001)c(4x2) surface in the presence of hydrogen gas has been studied with dispersion corrected density functional theory. Electronic energy contributions are well described using a hybrid functional.…

Chemical Physics · Physics 2016-06-09 Phil Rosenow , Ralf Tonner

Using molecular dynamics (MD) simulation, we have calculated the melting temperature of two-dimensional electron systems on $ 240$\AA-$ 500$\AA helium films supported by substrates of dielectric constants $ \epsilon_{s}=2.2-11.9$ at areal…

Strongly Correlated Electrons · Physics 2007-05-23 J. A. R. da Cunha , Ladir Candido

The static and dynamical properties of heavy water have been studied at ambient conditions with extensive Car-Parrinello molecular-dynamics simulations in the canonical ensemble, with temperatures ranging between 325 K and 400 K.…

Soft Condensed Matter · Physics 2007-05-23 P. H-L. Sit , Nicola Marzari

We present an approach to theoretical assessment of the mean specific interface area $(\delta{S}/\delta{V})$ for a well-stirred system of two immiscible liquids experiencing interfacial boiling. The assessment is based on the balance of…

Statistical Mechanics · Physics 2017-05-03 Denis S. Goldobin , Anastasiya V. Pimenova

We investigate thermal activation of thin-shells around anti-de Sitter black holes. Under the thin-shell approximation, we extensively study the parameter region that allows a bubble nucleation bounded by a thin-shell out of a thermal bath.…

General Relativity and Quantum Cosmology · Physics 2017-09-29 Pisin Chen , Guillem Domènech , Misao Sasaki , Dong-han Yeom

Melting of 3D solids is often preceded by a melting of their surface, a distinct process which begins at a temperature lower than the melting temperature. Until now, surface melting was investigated mostly by diffraction or other…

Materials Science · Physics 2019-09-26 Almog Danzig , Ori Scaly , Emil Polturak

The temperature dependence of the solid-liquid interfacial free energy, {\gamma}, is investigated for Al and Ni at the undercooled temperature regime based on a recently developed persistent-embryo method. The atomistic description of the…

Chemical Physics · Physics 2018-11-06 Yang Sun , Feng Zhang , Huajing Song , Mikhail I. Mendelev , Cai-Zhuang Wang , Kai-Ming Ho

Water, in its three phases, is ubiquitous, and the surface properties of ice is important to clarifying the process of melting, as well as to various other fields, including geophysics. As such, the subject has been studied both…

Other Condensed Matter · Physics 2019-01-16 Takahisa Mitsui , Kenichiro Aoki

By using the direct coexistence method, we have calculated the melting points of ice Ih at normal pressure for three recently proposed water models, namely, TIP3P-FB, TIP4P-FB, and TIP4P-D. We obtained Tm = 216 K for TIP3P-FB, Tm = 242 K…

Chemical Physics · Physics 2024-01-23 Samuel Blazquez , Carlos Vega

In this paper, dedicated to the career of Tom Erber, we consider the Casimir interaction between weakly coupled bodies at nonzero temperature. For the case of semitransparent bodies, that is, ones described by delta-function potentials, we…

High Energy Physics - Theory · Physics 2010-03-18 Kimball A. Milton , Prachi Parashar , Jef Wagner , K. V. Shajesh

We have studied the wetting properties of He4 adsorbed on the surface of heavy alkali metals by using a non-local free-energy density-functional which describes accurately the surface properties of liquid He4 in the temperature range 0<T<3…

Condensed Matter · Physics 2009-10-31 Francesco Ancilotto , Fabio Faccin , Flavio Toigo

In this paper we employ a self-consistent harmonic approximation to investigate surface melting and local melting close to quantum impurities in quantum solids. We show that surface melting can occur at temperatures much lower than the…

Statistical Mechanics · Physics 2009-11-13 E. Cappelluti , G. Rastelli , S. Gaudio , L. Pietronero

Model interaction potentials for real materials are generally optimized with respect to only those experimental properties that are easily evaluated as mechanical averages (e.g., elastic constants (at T=0 K), static lattice energies and…

Materials Science · Physics 2009-10-31 Jess B. Sturgeon , Brian. B. Laird

The energetics of H$_2$ interacting with the Si(100) surface is studied by means of {\em ab initio} total energy calculations within the framework of density functional theory. We find a direct desorption pathway from the mono-hydride phase…

mtrl-th · Physics 2009-10-28 P. Kratzer , B. Hammer , J. K. Norskov

A generalized model for the critical temperature Tc of superconducting bilayers is presented, which is valid with no restrictions to film thicknesses, Tc of the layers and interface resistivity. The model is verified experimentally on a…

Superconductivity · Physics 2009-11-10 G. Brammertz , A. A. Golubov , P. Verhoeve , R. den Hartog , A. Peacock , H. Rogalla

Using a global equation of state, empirically derived by Luding, we accurately model the density profile of a two-dimensional hard sphere system with diameter D and mass m under gravity with a given temperature T [Physica A, 271, 192…

Materials Science · Physics 2010-11-24 Alison E. Koser , Paul V. Quinn
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