Superior MgB2 Superconducting Wire Performance through Oxygen-Free Pyrene Additive
SCIE
SCOPUS
- Title
- Superior MgB2 Superconducting Wire Performance through Oxygen-Free Pyrene Additive
- Authors
- Maeda, Minoru; Kim, Jung Ho; HEO, YOON UK; Kwon, Se Kyun; Kumakura, Hiroaki; Choi, Seyong; Nakayama, Yoshitake; Takano, Yoshiki; Dou, Shi Xue
- Date Issued
- 2012-01
- Publisher
- Japan Soc of Applied Physics
- Abstract
- There is great potential to further enhance the critical current density (J(c)) performance of MgB2 wires. Herein, MgB2 wires were fabricated by using oxygen-free pyrene as dopant, and field and temperature dependences of J(c) were systematically evaluated. In addition, a strong correlation among sintering temperature, structural parameters, microstructure, and superconducting performance was established. High lattice distortion was obtained by using pyrene as an additive as well as by using a low-temperature sintering process. This arises from vacancy formation, as confirmed by first-principles calculations. The microscopic defects introduce impurity scattering, resulting in the enhancement of the irreversibility field and J(c). (C) 2012 The Japan Society of Applied Physics
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/106938
- DOI
- 10.1143/apex.5.013101
- ISSN
- 1882-0778
- Article Type
- Article
- Citation
- Applied Physics Express, vol. 5, no. 1, page. 013101, 2012-01
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- There are no files associated with this item.
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