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Showing papers by "Alain Levasseur published in 1986"

Journal Article•DOI•
Ionic conductivity and structural changes during the crystallization process of fast ionic conducting glasses

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M. Balkanski1, A. Ayyadi1, P. Cadet1, M. Jouanne1, Christian M. Julien1, M. Massot1, M. Scagliotti1, Alain Levasseur1 •
Centre national de la recherche scientifique1
01 Jan 1986-Solid State Communications
TL;DR: In this paper, Raman scattering results associated with ionic conductivity measurements on the B 2 O 3 -0.5Li 2 OO were presented, showing that the presence of new Li + ions in the glass is the origin of the conducting improvement observed in this materials.

16 citations

Journal Article•DOI•
Review of ESR centers induced by X-ray irradiation in both vitreous and crystalline borates or halogenoborates

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G. Vignaud1, René Berger1, M. Haddad1, Alain Levasseur1•
University of Bordeaux1
01 Sep 1986-Journal of Non-crystalline Solids
TL;DR: In this article, the ESR centers induced by X-ray irradiation of either vitreous or crystalline borates and halogenoborates are reviewed and compared.
Abstract: The ESR centers induced by X-ray irradiation of either vitreous or crystalline borates and halogenoborates are reviewed and compared. There are two types of centers: one is associated with the covalent boron-oxygen network and the second with ions located within this network. Strong similarities between both glasses and crystallized compounds are found for the first type of paramagnetic centers. On the contrary, the centers accomodated in the covalent network depend on the specific material considered.

4 citations