Concepedia

Phonons in broken-symmetry structures

B. S. Tošić, Jovan P. Šetrajčić, Rajka P. Djajić-Jovanović, Dragoljub Mirjanić

Physical review. B, Condensed matter · 1987 · 19 citations · 4 references

DOI

Concepts

Abstract

A parabolic model of structure deformation is proposed. This model can be realized with a specific pressure distribution over the boundaries of a film. The parabolic deformation, if achieved, causes the appearance of optical phonons only. It is shown that the population of optical phonons rapidly decreases with decreasing film thickness.

References

4

Surface Phonon Dispersion of Ni(100) Measured by Inelastic Electron Scattering

S. Lehwald, Jacob Szeftel, H. Ibach et al. · Physical Review Letters · 1983 · 245 citations

, , +14

Anomalous Surface Phonon Dispersion Relations for Ag(111) Measured by Inelastic Scattering of He Atoms

R. Bruce Doak, Uwe Harten, J. P. Toennies · Physical Review Letters · 1983 · 191 citations

, , +15

Theory of the surface magnetization profile and the low-energy, spin-polarized, inelastic electron scattering off insulating ferromagnets at finite<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>T</mml:mi></mml:math>

S. Selzer, Norberto Majlis · Physical review. B, Condensed matter · 1982 · 29 citations

, , +16

Surface screening effects in the vibrational spectra of simple metal surfaces

C. Beatrice, C. Calandra · Physical review. B, Condensed matter · 1983 · 29 citations

, , +15