Vibrational model for the direct-exchange diffusion of substitutional B in Cu

Autor:	M. Füllgrabe, D. Peters, Hans-Jürgen Stöckmann, K.-H. Ergezinger, B. Ittermann, F. Kroll
Rok vydání:	2001
Předmět:	Metal Materials science Quantitative Biology::Neurons and Cognition Condensed matter physics Impurity Diffusion visual_art Atom Physics::Atomic and Molecular Clusters visual_art.visual_art_medium Molecular physics Electric field gradient
Zdroj:	Physical Review B. 64
ISSN:	1095-3795 0163-1829
DOI:	10.1103/physrevb.64.224301
Popis:	Recently it was shown that substitutional B impurities in Cu metal diffuse via a direct-exchange mechanism. In this paper a model for this mechanism is proposed. From the temperature dependence of the electric field gradient produced by the B atom at its nearest Cu neighbors it is concluded that the local vibration of the B atom within its cage of Cu neighbors triggers the direct-exchange mechanism.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::127b69c02be26f2bd56316bbf77bdc42 https://doi.org/10.1103/physrevb.64.224301 Zobrazit plný text záznamu