Abstract
Onset transition temperature (123±1) K was observed in the BiCaSrCu2Ox bulk materials prepared by means of conventional ceramic technique. The resistance and AC susceptibility measurements show that there are two highT c phases. EPR measurement shows that belowT c (R=0), an intense line at zero field was observed. It is either associated with the glass feature or the spin triplet transition of Cu2+−Cu2+ pair via exchange interaction.
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The Project Supported by National Natural Science Foundation of China
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Min-Guan, Z., Xiao-Ning, Z. & Xiao-Lan, Z. 120 K superconductivity and the zero-field absorption in the BiCaSrCu2Ox system. Z. Physik B - Condensed Matter 73, 1–3 (1988). https://doi.org/10.1007/BF01312146
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DOI: https://doi.org/10.1007/BF01312146