SYNTHESIS AND CHARACTERIZATION OF REDUCED NIOBATES [SR1-XLNXNB2O6, LN=LA, ND]
1994 (English)In: Materials research bulletin, ISSN 0025-5408, E-ISSN 1873-4227, Vol. 29, 743-749 p.Article in journal (Refereed) Published
Sr1-xLnxNb2O6, Ln = La (x less-than-or-equal-to 0.4), Nd (x less-than-or-equal-to 0.3) solid solutions with a CaTa2O6-type structure have been studied. No superconductivity was found in the prepared samples down to 5K. The CaTa2O6 type crystal structure of Sr0.6La0.4Nb2O6 was refined from X-ray powder diffraction data: R(i)=0.054, R(p)=0.117. The oxidation process of the lanthanum-containing compounds was studied. A drastical decrease of the lanthanum content, accompanied by the formation of the cation vacancies at the Sr/La site occurs during oxidation.
Place, publisher, year, edition, pages
1994. Vol. 29, 743-749 p.
NIOBIUM; LANTHANOIDES; STRONTIUM; MIXED OXIDES
IdentifiersURN: urn:nbn:se:su:diva-43903DOI: 10.1016/0025-5408(94)90199-6OAI: oai:DiVA.org:su-43903DiVA: diva2:359729