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Amorphous-polycrystalline transition in frozen aqueous solutions of65Cu2+-doped sodium hydroxide probed by ESR spectroscopy

Amorphous-polycrystalline transition in frozen aqueous solutions of65Cu2+-doped sodium hydroxide probed by ESR spectroscopy

Authors :
Francesco Sacchetti
Pasquina Marzola
Salvatore Cannistraro
Gilberto Giugliarelli
Publication Year :
1988

Abstract

ESR analysis conducted on frozen aqueous solutions of sodium hydroxide doped with 65 Cu 2+ ions showed the presence of g and A strain in the amorphous phase obtained by rapid cooling below 170 K. Upon heating above 205 K but keeping the temperature below the melting point the sample structure switched to a polycrystalline phase revealed by a complete release of the spectral strain. Evidence for a slightly different coupling of the copper electronic spin to the phonon bath is observed in the two phases.

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....c562bd92d7bb40867ec3ab4c60de0d28