skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Iron-chalcogenide FeSe(0.5)Te(0.5) Coated Superconducting Tapes for High Field Applications

Abstract

The high upper critical field characteristic of the recently discovered iron-based superconducting chalcogenides opens the possibility of developing a new type of non-oxide high-field superconducting wires. In this work, we utilize a buffered metal template on which we grow a textured FeSe{sub 0.5}Te{sub 0.5} layer, an approach developed originally for high temperature superconducting coated conductors. These tapes carry high critical current densities (> 1 x 10{sup 4} A/cm{sup 2}) at about 4.2 K under magnetic field as high as 25 T, which are nearly isotropic to the field direction. This demonstrates a very promising future for iron chalcogenides for high field applications at liquid helium temperatures. Flux pinning force analysis indicates a point defect pinning mechanism, creating prospects for a straightforward approach to conductor optimization.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE SC OFFICE OF SCIENCE (SC)
OSTI Identifier:
1040493
Report Number(s):
BNL-96243-2011-JA
Journal ID: ISSN 0003-6951; APPLAB; R&D Project: PO-016; KC0202020; TRN: US1202468
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 98; Journal Issue: 26; Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CHALCOGENIDES; CRITICAL CURRENT; CRITICAL FIELD; HELIUM; IRON; MAGNETIC FIELDS; MAGNETIC FLUX; OPTIMIZATION; POINT DEFECTS; SUPERCONDUCTING WIRES; pulsed laser deposition; pinning force analysis; high field applications; iron based superconducting chalcogenides

Citation Formats

Si, W, Johnson, P, Zhou, J, Jie, Q, Dimitrov, I, Solovyov, V, Jaroszynski, J, Matias, V, Sheehan, C, and Li, Q. Iron-chalcogenide FeSe(0.5)Te(0.5) Coated Superconducting Tapes for High Field Applications. United States: N. p., 2011. Web. doi:10.1063/1.3606557.
Si, W, Johnson, P, Zhou, J, Jie, Q, Dimitrov, I, Solovyov, V, Jaroszynski, J, Matias, V, Sheehan, C, & Li, Q. Iron-chalcogenide FeSe(0.5)Te(0.5) Coated Superconducting Tapes for High Field Applications. United States. https://doi.org/10.1063/1.3606557
Si, W, Johnson, P, Zhou, J, Jie, Q, Dimitrov, I, Solovyov, V, Jaroszynski, J, Matias, V, Sheehan, C, and Li, Q. 2011. "Iron-chalcogenide FeSe(0.5)Te(0.5) Coated Superconducting Tapes for High Field Applications". United States. https://doi.org/10.1063/1.3606557.
@article{osti_1040493,
title = {Iron-chalcogenide FeSe(0.5)Te(0.5) Coated Superconducting Tapes for High Field Applications},
author = {Si, W and Johnson, P and Zhou, J and Jie, Q and Dimitrov, I and Solovyov, V and Jaroszynski, J and Matias, V and Sheehan, C and Li, Q},
abstractNote = {The high upper critical field characteristic of the recently discovered iron-based superconducting chalcogenides opens the possibility of developing a new type of non-oxide high-field superconducting wires. In this work, we utilize a buffered metal template on which we grow a textured FeSe{sub 0.5}Te{sub 0.5} layer, an approach developed originally for high temperature superconducting coated conductors. These tapes carry high critical current densities (> 1 x 10{sup 4} A/cm{sup 2}) at about 4.2 K under magnetic field as high as 25 T, which are nearly isotropic to the field direction. This demonstrates a very promising future for iron chalcogenides for high field applications at liquid helium temperatures. Flux pinning force analysis indicates a point defect pinning mechanism, creating prospects for a straightforward approach to conductor optimization.},
doi = {10.1063/1.3606557},
url = {https://www.osti.gov/biblio/1040493}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 26,
volume = 98,
place = {United States},
year = {Fri Jul 01 00:00:00 EDT 2011},
month = {Fri Jul 01 00:00:00 EDT 2011}
}