EPR AND MAGNETIC-SUSCEPTIBILITY STUDIES OF CR2O3-BI2O3-GEO2 GLASSES

Authors
ARDELEAN I PETEANU M SIMON V BOB C FILIP S
Citation
I. Ardelean et al., EPR AND MAGNETIC-SUSCEPTIBILITY STUDIES OF CR2O3-BI2O3-GEO2 GLASSES, Journal of Materials Science, 33(2), 1998, pp. 357-362
Citations number
41
Categorie Soggetti
Material Science
Journal title
Journal of Materials Science → ACNP
ISSN journal
00222461
Volume
33
Issue
2
Year of publication
1998
Pages
357 - 362
Database
ISI
SICI code
0022-2461(1998)33:2<357:EAMSOC>2.0.ZU;2-E
Abstract
Electron paramagnetic resonance (EPR) and magnetic susceptibility meas urements have been performed on xCr(2)O(3)(1-x) [Bi2O3 . GeO2] glasses with 0 < x less than or equal to 20 mol%. These data show that the ch romium ions are in Cr3+ valence state and for x less than or equal to 5 mol% they are isolated or experience dipole-dipole interactions. For higher Cr2O3 content the Cr3+ ions participate to the dipole-dipole a nd superexchange type interactions.