Journal ArticleDOI
A Born-von Karman model for lead☆
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In this article, the force constants for interactions extending to eighth neighbours in lead were fitted to the frequencies of normal modes with wave vectors spread uniformly through the first Brillouin zone, and the frequency distribution function calculated from the model was in good agreement with results obtained by other methods.About:
This article is published in Solid State Communications.The article was published on 1974-04-01. It has received 16 citations till now. The article focuses on the topics: Brillouin zone & Normal mode.read more
Citations
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Book ChapterDOI
Electron - Phonon Superconductivity
Frank Marsiglio,J. P. Carbotte +1 more
TL;DR: A fairly sophisticated description of electron-phonon superconductivity has existed since the early 1960's, following the work of Eliashberg [1], Nambu [2], Morel and Anderson [3], and Schrieffer et al..
Journal ArticleDOI
Ab initio calculation of the superconducting transition temperature
TL;DR: In this article, the superconducting transition temperature for a series of representative metals from a selfconsistent LMTO-bandstructure calculation is calculated, and the results for V, Nb, Ta, Mo, W, Pd, Pt, Pb clearly indicate that these popular approximations are incapable of reproducing the observed transition temperatures.
Journal ArticleDOI
Surface phonon dispersion curves of thin Pb films on Cu(111)
TL;DR: In this article, the diffraction pattern of the first monolayer (ML) indicates a $p(4\ifmmode\times\else\texttimes\fi{}4)$ structure with the same lattice constant as the bulk and small superimposed peaks for the thinnest films.
Journal ArticleDOI
A helium atom scattering study of ultrathin lead films grown on Cu(111)
J. Braun,J. P. Toennies +1 more
TL;DR: In this article, the growth and dynamics of ultrathin lead films on Cu(111) have been investigated using high-resolution helium atom scattering, and a new mode for the monolayer structure has been found along the 〈110〉 azimuth.
DissertationDOI
Temperature Dependence of Phonons in Elemental Cubic Metals Studied by Inelastic Scattering of Neutrons and X-Rays
TL;DR: In this paper, the phonon spectra of aluminum, lead, nickel, and iron were measured as a function of temperature, and the anharmonic contributions to the entropies of these cubic metals were considered.
References
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Journal ArticleDOI
Lead phonon spectrum calculated from superconducting density of states
W. L. McMillan,J. M. Rowell +1 more
Journal ArticleDOI
Crystal Dynamics of Copper
TL;DR: In this article, the frequency/wave-vector dispersion relation for the symmetry directions [$00\ensuremath{\zeta}$], [$0\enuremath{µ}µ], [µ, µ,µ] in copper at room temperature has been determined by inelastic neutron scattering and interplanar and atomic force constants have been obtained.
Journal ArticleDOI
Crystal Dynamics of Lead. I. Dispersion Curves at 100°K
TL;DR: In this article, the authors analyzed the dispersion curves of lead at the point (1, 0, 0) of a triple-axis crystal spectrometer and showed that the positions in reciprocal space at which these anomalies occur agree well with the quasi-free model for the electrons in lead, proposed by Gold.
Journal ArticleDOI
Phonon-Frequency Distributions and Heat Capacities of Aluminum and Lead
TL;DR: In this article, the phonon-frequency distributions of aluminum and lead were determined from individual frequencies measured by neutron spectrometry and the resulting distributions were used to calculate heat capacities at temperatures up to 800\ifmmode^\circ\else\textdegree\fi{} (A1), with corrections for anharmonicity based on shifts of phonon frequencies with temperature.
Journal ArticleDOI
Origin of the discrepancy between tunneling and neutron-derived phonon densities of states in lead
TL;DR: In this paper, a comparison of the density of phonon states derived from neutron scattering data with that extracted from superconducting tunneling experiments for the case of lead is presented.