In:
Advanced Engineering Materials, Wiley, Vol. 25, No. 9 ( 2023-05)
Abstract:
Previous research results have demonstrated that Fe(Se,Te) films with high critical current density J c can be realized on flexible metal substrates and are promising for high field applications at 4.2 K. For practical applications, the length of the coated conductor is a key factor. Regarding the fabrication of long Fe(Se,Te)‐coated conductor tapes, the biggest difficulty is how to achieve a breakthrough from static coating to continuous dynamic coating process. Herein, it is demonstrated that Fe(Se,Te)‐coated conductor with high superconducting performance can be continuously fabricated. 1 m‐long Fe(Se,Te)‐coated conductors have been successfully fabricated by multiturn pulsed laser deposition on CeO 2 ‐buffered ion beam‐assisted deposition MgO tape. The Fe(Se,Te)‐coated conductors have high critical temperature of 17.5 K and J c over 2 MA cm −2 at 4.2 K and self‐field. The end‐to‐end critical current of 1 m‐long Fe(Se,Te)‐coated conductor is as high as 108 A cm −1 ‐width at 4.2 K and self‐field, and the corresponding J c is 1.54 MA cm −2 , which is above the threshold for industrial applications. The upper critical field at 0 K is deduced to be about 53 T. To the best of knowledge, this is the first demonstration of continuous fabrication of long Fe(Se,Te)‐coated conductors with high performance.
Type of Medium:
Online Resource
ISSN:
1438-1656
,
1527-2648
DOI:
10.1002/adem.202201536
Language:
English
Publisher:
Wiley
Publication Date:
2023
detail.hit.zdb_id:
2016980-2
detail.hit.zdb_id:
1496512-4
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