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- Title
Structure, magnetic, and electric properties of bismuth niobates doped with d-elements: VII. State of copper in the Bi<sub>2</sub>BaCu<sub> x </sub>Nb<sub>2− x </sub>O<sub>9−δ</sub> solid solutions.
- Authors
Chezhina, N. V.; Piir, I. V.; Zhuk, N. A.
- Abstract
Magnetic susceptibility of the Bi2BaCu x Nb2− x O9−δ solid solutions (0.01 < x < 0.20) with the layered perovskite-like structure was studied. In dilute solid solutions, copper atoms are in the form of Cu(II) monomers. As the concentration increases, the fraction of monomers decreases and the fraction of exchange-bonded aggregates (dimers) of Cu(II) with antiferromagnetic exchange increases. The antiferromagnetic exchange parameter in the copper dimers was estimated at −300 cm−1.
- Subjects
MAGNETIC properties of bismuth; NIOBATES; BARIUM; MAGNETIC properties of copper; MAGNETIC properties of niobium; OXYGEN; SOLID solutions; MAGNETIC susceptibility
- Publication
Russian Journal of General Chemistry, 2008, Vol 78, Issue 6, p1135
- ISSN
1070-3632
- Publication type
Article
- DOI
10.1134/S1070363208060066