Effect of the grain alignment on the levitation force in single domain YBa2Cu3Oy bulk superconductors

W. M. Yang, Y. Feng, L. Zhou, P. X. Zhang, M. Z. Wu, Shaokai Chen, X. Z. Wu, W. Gawalek

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

Single-domain YBa2Cu3Oy (YBCO) bulk superconductors (Φ 30×15 mm3) with high levitation force of 70 N have been fabricated by modified melt-textured growth process. The sample was cut into a group of small rectangular samples with the same dimension of 3.5×3.5×5 mm3 along different grain-orientation. The levitation force of the small samples has been measured at liquid nitrogen temperature. It is found that the levitation force decreases monotonously from θ = 0° to 90°, where θ is the angle between the c-axis and the normal to the polished surfaces. A simple model has been proposed to interpret the experimental result, which is in good agreement with the experimental data.

Original languageEnglish
Pages (from-to)164-168
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume319
Issue number3
DOIs
StatePublished - 20 Jun 1999
Externally publishedYes

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