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On the mechanisms of J c increment and degradation in high-J c Ba122 tapes made by different processing methods

https://doi.org/10.35848/1882-0786/ad1891

Kametani, F. ; Su, Y. ; Tarantini, C. ; Hellstrom, E. ; Matsumoto, A. ; Kumakura, H. ; Togano, K. ; Huang, H. ; Ma, Y. ( January 2024 , Applied Physics Express)

Abstract
We compared the grain and grain boundary (GB) nanostructures in two Ba122 tapes with similarly highJ_c. The Ag-sheathed tape made by hot pressing has larger, more plate-like grains with betterc-axis alignment but has more GBs blocked by FeAs and Ba–O. In contrast, the tape made by cold pressing with an Ag-Sn/stainless steel sheath possesses fewer plate-like grains and weaker grain alignment but has more continuous current paths with clean physically well-connected GBs. Our nanostructural comparison emphasizes the strong need to achieve both good grain alignment and clean GBs for furtherJ_cimprovement of Ba122 tapes.

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Small grains: a key to high-field applications of granular Ba-122 superconductors?

https://doi.org/10.1088/0953-2048/29/2/025004

Hecher, J. ; Baumgartner, T. ; Weiss, J. D. ; Tarantini, C. ; Yamamoto, A. ; Jiang, J. ; Hellstrom, E. E. ; Larbalestier, D. C. ; Eisterer, M. ( December 2015 , Superconductor Science and Technology)
Composition and connectivity variability of the A15 phase in PIT Nb 3 Sn wires

https://doi.org/10.1088/0953-2048/28/9/095001

Tarantini, C. ; Segal, C. ; Sung, Z. H. ; Lee, P. J. ; Oberli, L. ; Ballarino, A. ; Bottura, L. ; Larbalestier, D. C. ( July 2015 , Superconductor Science and Technology)
Anomalous hysteresis as evidence for a magnetic-field-induced chiral superconducting state in LiFeAs

https://doi.org/10.1103/PhysRevB.87.024512

Li, G. ; Urbano, R. R. ; Goswami, P. ; Tarantini, C. ; Lv, B. ; Kuhns, P. ; Reyes, A. P. ; Chu, C. W. ; Balicas, L. ( January 2013 , Physical Review B)
Artificial and self-assembled vortex-pinning centers in superconducting Ba(Fe 1−x Co x ) 2 As 2 thin films as a route to obtaining very high critical-current densities

https://doi.org/10.1103/PhysRevB.86.214504

Tarantini, C. ; Lee, S. ; Kametani, F. ; Jiang, J. ; Weiss, J. D. ; Jaroszynski, J. ; Folkman, C. M. ; Hellstrom, E. E. ; Eom, C. B. ; Larbalestier, D. C. ( December 2012 , Physical Review B)
Anisotropy of the irreversibility field for Zr-doped (Y,Gd)Ba 2 Cu 3 O 7−x thin films up to 45 T

https://doi.org/10.1103/PhysRevB.84.224514

Tarantini, C. ; Jaroszynski, J. ; Kametani, F. ; Zuev, Y. L. ; Gurevich, A. ; Chen, Y. ; Selvamanickam, V. ; Larbalestier, D. C. ; Christen, D. K. ( December 2011 , Physical Review B)
Significant enhancement of upper critical fields by doping and strain in iron-based superconductors

https://doi.org/10.1103/PhysRevB.84.184522

Tarantini, C. ; Gurevich, A. ; Jaroszynski, J. ; Balakirev, F. ; Bellingeri, E. ; Pallecchi, I. ; Ferdeghini, C. ; Shen, B. ; Wen, H. H. ; Larbalestier, D. C. ( November 2011 , Physical Review B)
Significant enhancement of compositional and superconducting homogeneity in Ti rather than Ta-doped Nb3Sn

https://doi.org/10.1063/1.4940726

Tarantini, C. ; Sung, Z-H. ; Lee, P. J. ; Ghosh, A. K. ; Larbalestier, D. C. ( January 2016 , Applied Physics Letters)