Document Type
Article
Publication Date
5-15-2002
Publication Title
Journal of Applied Physics
Abstract
To further elucidate the nature of the valence state of V ions in vanadate glasses,magnetic susceptibility measurements in the temperature range of 5 to 300 K have been performed on a series of vanadium–strontium–borate (V2O5+SrO+B2O3) oxide glasses with V2O5 concentrations greater than 50 mol %. The magnetic susceptibility for these oxide glasses is found to consist of a temperature-independentparamagnetic contribution arising from V2O5 and a Curie–Weiss temperature-dependent contribution associated with magnetic V4+ ions being present in concentrations between 2% and 10% of the total V concentration. The negative Curie–Weiss temperatures in the range of 0 to −2.8 K indicate a weak antiferromagneticinteraction between the V4+ ions. These results are consistent with a glass network structure consisting of VO5 polyhedra in which the V4+ would be predominantly isolated species, and any interactions between the V4+ ions would result from superexchange interactions through V–O–V bonds.
Repository Citation
Chinkhota, Manford; Fodor, Petru S.; Khattak, G. D.; and Wenger, Lowell E., "Investigation of The Magnetic Properties in Strontium–Borate Vanadate Glasses" (2002). Physics Faculty Publications. 203.
https://engagedscholarship.csuohio.edu/sciphysics_facpub/203
DOI
10.1063/1.1456438
Version
Publisher's PDF
Publisher's Statement
© 2002 American Institute of Physics.
Volume
91
Issue
10
Comments
This work is supported in part by the National Science Foundation Grant No. DGE-9870720 and by the KFUPM Physics Department and Research Committee~Grant PH/PHYSPROP/43!.