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Effects of inter-granular Sn on transport and magnetic properties of polycrystalline GdBCO superconductors.
- Source :
-
Applied Physics A: Materials Science & Processing . Aug2024, Vol. 130 Issue 8, p1-11. 11p. - Publication Year :
- 2024
-
Abstract
- Inter-granular Sn particles affect transport and magnetic properties both in the normal and superconducting states of polycrystalline GdBa2Cu3O7−δ (GdBCO) superconductors drastically. Normal state resistivity at 300 K increases ~ 18.0 times as the concentration of Sn is increased. An unusual upturn in resistivity as a function of temperature curve with a dip is observed in GdBCO with 3.0 wt% of Sn in which suppression of superconducting phase transition has been observed. Current-voltage (IV) curves below Tc exhibit nonlinear features in composites of GdBCO and Sn. Magnetization (M) as a function of magnetic field (H) curves at 2.0 –20.0 K in GdBCO shifts strongly with the addition of 1.0 wt% Sn. We have extracted irreversible magnetization, lower critical field (Hc1) and magnetic critical density (Jcm) as a function of H at several T. The maximum pinning force density is 0.4 GN/m3 in GdBCO which is reduced in the Sn added GdBCO. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09478396
- Volume :
- 130
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Applied Physics A: Materials Science & Processing
- Publication Type :
- Academic Journal
- Accession number :
- 179069089
- Full Text :
- https://doi.org/10.1007/s00339-024-07703-4