Synthesis and Study Structural and Electrical Properties of Hg0.5Pb0.5-xSbxBa2Ca2Cu3O8+ Î´ Superconductors. IHJPAS [Internet]. 2017 May 15 [cited 2024 May 2];24(2). Available from: https://jih.uobaghdad.edu.iq/index.php/j/article/view/769