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

#### Abstract

This study has investigated the effect of tin (*Sn*) diffusion on structural, electrical and magnetic properties of the bulk *YBa _{2}Cu_{3}O_{7−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

*T*of 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

^{offset}_{c}*Sn*in YBCO on the force.

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URN: https://sloi.org/urn:sl:tjoee72238

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