C. EngkagulK. EaiprasertsakJ. LaksanaboonsongK. TreechairusmeN. ChaichitS. LeelapruteN. ChiengpratoomI. M. TangThammasat UniversitySilpakorn UniversityMahidol University2018-08-102018-08-101991-10-01Physica C: Superconductivity and its applications. Vol.181, No.1-3 (1991), 63-67092145342-s2.0-0026238639https://repository.li.mahidol.ac.th/handle/123456789/22036The effect of the replacement of strontium ions by lithium ions on the Tcs of liquid-nitrogen-quenched "2212" bismuth superconductors processed at 700°C is studied. As is the case for the exchange of cooper ions by lithium ions, the Li/Sr exchange produces a linear (with respect to the amount of Li substitution) increase in the Tcs. The similarity between the increases for the Li/Cu and Li/Sr exchanges points to the increases in the Tcs being due to the effects of hole creation resulting from the non-isovalent ionic substitutions. © 1991.Mahidol UniversityEnergyEngineeringMaterials SciencePhysics and AstronomyArticleSCOPUS10.1016/0921-4534(91)90336-W