Journal ArticleDOI
Theory of surface force-constant changes in body-centered cubic lattices☆☆☆
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TLDR
In this article, a model consisting of first, second and third-neighbor Lennard-Jones interactions together with harmonic angle bending interactions is employed to fit the equilibrium lattice spacing, the elastic constants, and certain phonon frequencies at high symmetry points in the Brillouin zone.About:
This article is published in Surface Science.The article was published on 1974-06-01. It has received 22 citations till now. The article focuses on the topics: Cubic crystal system & Lattice constant.read more
Citations
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Surface phonons and superstructures. An application: transition metals
TL;DR: In this article, a model consisting of first and second neighbor central interactions together with angle bending forces is used for surface phonons at the (001) surface of some fcc and bcc transition metals.
Journal ArticleDOI
Vibrational states on vicinal surfaces of Al, Ag, Cu and Pd
TL;DR: In this article, the authors present the calculation of vibrational modes and lattice relaxation for the (110, (211), (311), (511), (331), (223), (224), and (221) surfaces of Al, Ag, Cu and Pd.
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Surface crystallography of W(110) and W(110) p (2×1)-O: The position of W atoms
TL;DR: In this article, the position of W atoms in the surface layers of clean W (110) and W(110) p (2 × 1)-O was studied using Constant-Momentum-Transfer Averaging of LEED intensities.
Journal ArticleDOI
Surface vibrations on body centered cubic and face centered cubic metal surfaces: The (100) surfaces
TL;DR: In this paper, the dynamics of atom motion at metal (100) surfaces were modeled with central forces and angle bending forces and results for frequencies and polarizations of surface modes were presented for the following metals: body centered Cr, Fe, K, Mo, Na, V and W; face centered Ag, Al, Au, Cu, Ni, Pd, Pt and Rh.
References
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Journal ArticleDOI
Lattice vibrations of tungsten
S.H. Chen,Bertram N. Brockhouse +1 more
TL;DR: In this paper, the frequency wave number dispersion relations of lattice vibrations in the symmetric directions of body-centered cubic tungsten at room temperature have been measured by means of inelastic neutron scattering.
Journal ArticleDOI
Lattice dynamics of molybdenum
A.D.B. Woods,S.H. Chen +1 more
TL;DR: In this paper, measurements of ν( q ) for the Δ, Σ and Λ directions in molybdenum at 296°K using neutron spectrometry were performed.
Journal ArticleDOI
Surface tension and surface modes in semi-infinite lattices☆
Denos C. Gazis,R. F. Wallis +1 more
TL;DR: In this article, conditions of stability for such a lattice were established and the influence of a free surface on the localized mode due to a force-constant imperfection at some distance from the boundary was investigated.
Journal ArticleDOI
Observation of zero-point atomic motion near the Cr (110) surface by low-temperature diffraction of slow electrons
R. Kaplan,Gabor A. Somorjai +1 more
TL;DR: In this article, low energy electron diffraction studies of the chromium surface at temperatures as low as one-sixth the 0°K Debye temperature have been described, and the zero-point thermal motion of chromium atoms, and temperature dependence of the ratio of surface to bulk mean square displacements, have been observed.
Journal ArticleDOI
Theory of surface atom mean square displacements in chromium
Richard F. Wallis,D.J. Cheng +1 more
TL;DR: In this paper, the temperature dependence of the mean square displacements for atoms on the (100) and (110) surfaces of chromium has been studied theoretically using the harmonic approximation.
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Model for the Lattice Dynamics of Metals. II. Application to Face‐Centered Cubic Metal Copper
P. K. Sharma,S. K. Joshi +1 more