Preparation and Superconductivity of Bi-O-S System

Abstract:

Several Bi-O-S compounds with nominal composition of Bi₄O₄S₃, Bi₃O₂S₃, Bi₂OS₂ have successfully been synthesized. The superconducting properties present to be similar with each other for Bi₄O₄S₃ and Bi₂OS₂ compounds, but much better than the Bi₃O₂S₃ compound. The former two possess a zero resistance temperature at 4.1 K, whereas the latter one is 3.7 K. Two diamagnetic transitions have been observed in the M-T curve for all three compounds. The starting nominal composition definitely affects the superconductivity of the final products.

• Periodical: Materials Science Forum (Volume 848)
• Pages: 664-668
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.848.664
• Online since: March 2016
• Authors: Ya Jing Cui, Dong Rong Lan, Yu Feng Su, Yong Liang Chen, Yong Zhao
• Keywords: Bi-O-S System, Magnetization, Preparation, Superconductivity, Two Diamagnetic Transitions

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