Superconductivity in BaPb1-xBixO3and BaxK1-xBiO3
- 1 May 1989
- journal article
- letter
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 1 (17) , 2939-2943
- https://doi.org/10.1088/0953-8984/1/17/014
Abstract
The superconducting transition temperatures of BaPb1-xBixO3 (BPB) and BaxK1-xBiO3 (BKB) are evaluated on the basis of the strong-coupling theory. The electron-lattice interaction is calculated microscopically by using the realistic electronic band structure. It is shown that the superconducting properties of BKB, such as high transition temperatures ( approximately=30 K) and rather small isotope effects, can be understood within the phonon mechanism.Keywords
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