Presentation Information
[24p-12P-6]Superconducting properties of oxygen content controlled (Y,Pr)247
〇Haruto Niitsu1, Tetsuya Matsushita1, Takanori Motoki1, Jun-ichi Shimoyama1 (1.Aoyama Gakuin Univ.)
Keywords:
superconductivity,Pr247
According to the conventional theory, the CuO2 plane is responsible for superconductivity in copper oxide superconductors. However, Pr123 and Pr124 don’t show superconductivity due to hole carriers are trapped by Pr3+ ions. On the other hand, Pr247 which has a hybrid crystal structure of Pr123 and Pr124 has been confirmed to exhibit superconductivity by controlling the oxygen content through appropriate reductive post-annealing, even though the CuO2 plane is insulating.
In my study, I synthesized (Pr,Y)247 and characterized its physical properties. In particular, I expect that the superconductivity of the CuO2 plane disappears with decreasing oxygen content and becomes non-superconducting, a reappearance of superconductivity in the CuO double chain when the oxygen content is controlled to be moderately small.
In my study, I synthesized (Pr,Y)247 and characterized its physical properties. In particular, I expect that the superconductivity of the CuO2 plane disappears with decreasing oxygen content and becomes non-superconducting, a reappearance of superconductivity in the CuO double chain when the oxygen content is controlled to be moderately small.