Anharmonic gap modes in a perfect one-dimensional diatomic lattice for standard two-body nearest-neighbor potentials
- 1 November 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 48 (18) , 13508-13511
- https://doi.org/10.1103/physrevb.48.13508
Abstract
Two-body potentials of the Toda, Born-Mayer, Lennard-Jones, and Morse type are used in a one-dimensional diatomic lattice to demonstrate both analytically and numerically that stable anharmonic gap modes are a general feature of these perfect lattices. Associated with each vibrational mode is a localized dc lattice expansion, which forms an integral part of this dynamical configuration.This publication has 10 references indexed in Scilit:
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