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Title: High Current-Carrying Capability in c -Axis-Oriented Superconducting MgB{sub 2} Thin Films

Abstract

In high-quality c -axis-oriented MgB{sub 2} thin films, we observed high critical current densities (J{sub c} ) of {approx}16 MA/cm{sup 2} at 15K under self-fields comparable to those of cuprate high-temperature superconductors. The extrapolated value of J{sub c} at 5K was estimated to be {approx}40 MA/cm{sup 2}. For a magnetic field of 5T, a J{sub c} of {approx}0.1 MA/cm{sup 2} was detected at 15K, suggesting that this compound would be a very promising candidate for practical applications at high temperature and lower power consumption. The vortex-glass phase is considered to be a possible explanation for the observed high current-carrying capability.

Authors:
; ; ; ; ;
Publication Date:
Sponsoring Org.:
(US)
OSTI Identifier:
40231004
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 87; Journal Issue: 8; Other Information: DOI: 10.1103/PhysRevLett.87.087002; Othernumber: PRLTAO000087000008087002000001; 040134PRL; PBD: 20 Aug 2001; Journal ID: ISSN 0031-9007
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CRITICAL CURRENT; CUPRATES; MAGNETIC FIELDS; SUPERCONDUCTORS; THIN FILMS

Citation Formats

Kim, Hyeong-Jin, Kang, W N, Choi, Eun-Mi, Kim, Mun-Seog, Kim, Kijoon H. P., and Lee, Sung-Ik. High Current-Carrying Capability in c -Axis-Oriented Superconducting MgB{sub 2} Thin Films. United States: N. p., 2001. Web. doi:10.1103/PhysRevLett.87.087002.
Kim, Hyeong-Jin, Kang, W N, Choi, Eun-Mi, Kim, Mun-Seog, Kim, Kijoon H. P., & Lee, Sung-Ik. High Current-Carrying Capability in c -Axis-Oriented Superconducting MgB{sub 2} Thin Films. United States. https://doi.org/10.1103/PhysRevLett.87.087002
Kim, Hyeong-Jin, Kang, W N, Choi, Eun-Mi, Kim, Mun-Seog, Kim, Kijoon H. P., and Lee, Sung-Ik. 2001. "High Current-Carrying Capability in c -Axis-Oriented Superconducting MgB{sub 2} Thin Films". United States. https://doi.org/10.1103/PhysRevLett.87.087002.
@article{osti_40231004,
title = {High Current-Carrying Capability in c -Axis-Oriented Superconducting MgB{sub 2} Thin Films},
author = {Kim, Hyeong-Jin and Kang, W N and Choi, Eun-Mi and Kim, Mun-Seog and Kim, Kijoon H. P. and Lee, Sung-Ik},
abstractNote = {In high-quality c -axis-oriented MgB{sub 2} thin films, we observed high critical current densities (J{sub c} ) of {approx}16 MA/cm{sup 2} at 15K under self-fields comparable to those of cuprate high-temperature superconductors. The extrapolated value of J{sub c} at 5K was estimated to be {approx}40 MA/cm{sup 2}. For a magnetic field of 5T, a J{sub c} of {approx}0.1 MA/cm{sup 2} was detected at 15K, suggesting that this compound would be a very promising candidate for practical applications at high temperature and lower power consumption. The vortex-glass phase is considered to be a possible explanation for the observed high current-carrying capability.},
doi = {10.1103/PhysRevLett.87.087002},
url = {https://www.osti.gov/biblio/40231004}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 8,
volume = 87,
place = {United States},
year = {Mon Aug 20 00:00:00 EDT 2001},
month = {Mon Aug 20 00:00:00 EDT 2001}
}