Properties of IR-active lattice vibrations in the vicinity of kinks in the Frenkel-Kontorova model

Autor:	M. A. Moskalenko, V. M. Burlakov
Rok vydání:	1997
Předmět:	Physics Vibration Frenkel–Kontorova model Physics and Astronomy (miscellaneous) Condensed matter physics Solid-state physics Infrared Phonon Lattice (order) System parameters Lattice vibration Nonlinear Sciences::Pattern Formation and Solitons
Zdroj:	Journal of Experimental and Theoretical Physics Letters. 65:785-790
ISSN:	1090-6487 0021-3640
Popis:	The properties of infrared lattice vibrations in the presence of kinks in the Frenkel-Kontorova model are analyzed. Our results show that the vibration of particles involved in kink formation is very similar to that in a gap mode around a force-constant defect. We found that the IR phonon mode intensity possesses a universal dependence on a certain combination of system parameters and kink concentration. On the basis of these results a criterion is proposed for separating the regime of weakly interacting kinks in the system from the regime of a kink lattice.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f6e9af9c9f50f857744f13dcfa3f469 https://doi.org/10.1134/1.567297 Zobrazit plný text záznamu Plný text ve formátu PDF