Oxygen-deficient barium lead oxide perovskites
- 1 May 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 47 (17), 11525-11528
- https://doi.org/10.1103/physrevb.47.11525
Abstract
Through careful selection of reduction conditions it is found that both and can be prepared with significant amounts of oxygen deficiency. In both cases, crystallographic unit cells and resistivities change with oxygen content. Hall-effect measurements, however, indicate that the oxygen nonstoichiometry does not change the mobile-carrier concentration, suggesting that the electrons introduced are strongly trapped. The oxygen-deficient materials and are not superconducting down to 70 mK.
Keywords
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