A non-linear model of solid-state amorphization

Autor:	J. Singleton, T V Ischenko, S. V. Demishev, Stephen J. Blundell
Jazyk:	angličtina
Rok vydání:	1997
Předmět:	Chemistry business.industry Solid-state Mineralogy Thermodynamics Non linear model Condensed Matter Physics Critical ionization velocity Stress field Semiconductor Phase (matter) Thermal General Materials Science business Scaling
Zdroj:	JOURNAL OF PHYSICS-CONDENSED MATTER. 9(43)
ISSN:	1361-648X 0953-8984
Popis:	A non-linear model of solid-state amorphization (SSA) is proposed which takes into account the interaction of the structural elements of the amorphous phase via a stress field. For the experimental parameters which correspond to semiconductors undergoing SSA by high-pressure phase retention, we obtain the solution in the form of a self-sustaining wave with a constant velocity v. This solution exists in the region v < vc, where the critical velocity vc is controlled by the thermal and concentration diffusivities DT and DN . A simple scaling relation is proposed for vc: vc(DN, DT) ∼ DT/(DN)0.5. It is found that the characteristic correlation length of the amorphous phase formed by SSA strongly depends on the interplay between the parameters v, DN and DT.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26892b2164b8b084801e5216368a811a http://ora.ox.ac.uk/objects/uuid:48099f98-4ebf-45e6-942a-168a56f1ed22 Zobrazit plný text záznamu