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The investigation of Sn diffusion on the magnetic levitation force performance of YBCO superconductors

Sait Barış Güner, Şükrü Çelik


This study has investigated the effect of tin (Sn) diffusion on structural, electrical and magnetic properties of the bulk YBa2Cu3O7−x (Y123 or YBCO) superconductors fabricated by a solid-state reaction method by X-ray Diffraction analysis (XRD) and the electrical resistance, but also the magnetic levitation force of tin (Sn) in the Y123 material for the first time. In this study, the samples were annealed for the diffusion at 900, 800, 700 and 600°C for 24 hours after the tin atoms evaporated on YBCO samples. From XRD patterns, pure and Sn diffused YBCO samples was found the orthorhombic YBCO phase structure peaks as (130), (010) and also (200) - (220) Sn peaks. Moreover, it is obtained from that the lattice parameter a and c are decreased with the increase of diffusion temperature. On electrical properties, Sn diffusion on YBCO samples decreased the critical transition temperature Toffsetcof YBCO from 87.3 K to 89.7 K. The magnetic levitation force measurements of the samples were performed under zero field cooling regimes at liquid nitrogen temperature to determine the effect of diffusion temperature of Sn in YBCO on the force.  

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