COMPOSITION AND METHOD FOR SYNTHESIS OF HIGH-TEMPERATURE HgBa-Ca-Cu-O (HBCCO) SUPERCONDUCTORS IN BULK AND THIN FILM

摘要

The present invention is for a composition and process for a controlled vapor/solid reaction for the synthesis of samples of bulk and thin film compositions with a structure defined by the homologous series HgBa2Can-1CunO¿2n+2+δ?[Hg-12(n-1)n] with n = 1, 2, 3,... with up to 75 to 90 % Hg-1212 and 65 to 75 % Hg-1223 by volume, which display sharp superconducting transitions up to 135 K.