Magneto-Chemical Properties of Some New Ni and Co Rare-Earth Metal Tungstates

Abstract:

New d-electron and rare-earth metal tungstates (CoRE2W2O10; CoRE4W3O16; Co2RE2W3O14 and NiRE2W2O10) were studied by the IR and EPR spectroscopy methods. The IR absorption bands with their maxima can be assigned to the symmetric and asymmetric stretching modes of W-O bonds in the joint of WO6 octahedra and also to the oxygen double WOOW bridge bonds. The wide, unstructured EPR powder spectra of these compounds and their temperature evolution have been analyzed and interpreted.

• Periodical: Solid State Phenomena (Volume 128)
• Pages: 207-212
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.128.207
• Online since: October 2007
• Authors: Adam Worsztynowicz, Slawomir M. Kaczmarek, Elzbieta Tomaszewicz
• Keywords: EPR, IR-Spectroscopy, Metal Tungstates

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