Direct Observation of Long-Term Durability of Superconductivity in YBa$_2$Cu$_3$O$_7$-Ag$_2$O Composites

Juhn-Jong Lin; Yong-Han Lin; Shiu-Ming Huang; Tsang-Chou Lee; Teng-Ming Chen

doi:10.1143/JJAP.42.6415

paper

Direct Observation of Long-Term Durability of Superconductivity in YBa $_{2}$ Cu $_{3}$ O $_{7}$ -Ag $_{2}$ O Composites

arXiv:cond-mat/0307187 · doi:10.1143/JJAP.42.6415

Abstract

We report direct observation of long-term durability of superconductivity of several YBa $_{2}$ Cu $_{3}$ O $_{7}$ -Ag $_{2}$ O composites that were first prepared and studied almost 14 years ago [J. J. Lin {\it et al}., Jpn. J. Appl. Phys. {\bf 29}, 497 (1990)]. Remeasurements performed recently on both resistances and magnetizations indicate a sharp critical transition temperature at 91 K. We also find that such long-term environmental stability of high-temperature superconductivity can only be achieved in YBa $_{2}$ Cu $_{3}$ O $_{7}$ with Ag $_{2}$ O addition, but not with pure Ag addition.

to be published in Jpn. J. Appl. Phys

Direct Observation of Long-Term Durability of Superconductivity in YBa2​Cu3​O7​-Ag2​O Composites

Abstract

Direct Observation of Long-Term Durability of Superconductivity in YBa $_{2}$ Cu $_{3}$ O $_{7}$ -Ag $_{2}$ O Composites