Synthesis and characterization of the reduced niobates CaLnNb{sub 2}O{sub 7}, Ln = La-Pr, Sm, Gd-Lu, with the pyrochlore-type structure
Journal Article
·
· Materials Research Bulletin
- Moscow State Univ. (Russian Federation). Chemical Dept.
- Stockholm Univ. (Sweden)
- Royal Inst. of Tech., Stockholm (Sweden). Dept. of Solid State Physics
New reduced niobates, CaLnNb{sub 2}O{sub 7}, Ln = Pa-Pr, Sm, Gd-Lu, with the pyrochlore-type structure were synthesized in sealed Nb ampoules at 1350-1500 C for 6--10 h. The prepared compounds were characterized by powder X-ray diffraction, energy dispersive X-ray analysis, and thermogravimetric analysis. The magnetic measurements showed that all of the samples except the La, Sm, and Lu compounds exhibited Curie-Weiss behavior. The compounds were found to be electrically insulating.
- OSTI ID:
- 638344
- Journal Information:
- Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 8 Vol. 33; ISSN MRBUAC; ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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