Kyushu Institute of Technology Academic Repository
Kyutacarは九州工業大学で生産された研究成果を オープンアクセスで提供する機関リポジトリシステムです。 Kyutacar is open-access repository of research by members of the Kyushu Institute of Technology.
Department of Computer Science and Electronics, Kyushu Institute of Technology, Iizuka, Fukuoka 820-8502, Japan
Department of Computer Science and Electronics, Kyushu Institute of Technology, Iizuka, Fukuoka 820-8502, Japan
抄録
The upper limit of critical current density by the flux pinning mechanism is theoretically investigated by taking into account the influence of kinetic energy. The upper limit is estimated to be 67% of the depairing current density in the London limit, which is about 23% higher than the estimation by Tinkham. The reason for the higher value is attributed to the enhancement of the order parameter that reduces the kinetic energy caused by the current. The possibility of such a strong flux pinning is discussed for nano-rods introduced to REBCO coated conductors.
雑誌名
Applied Physics Express
巻
12
号
2
ページ
023004-1 - 023004-4
発行年
2019-01-18
出版者
IOP Publishing
ISSN
1882-0786
1882-0778
書誌レコードID
AA12295133
DOI
info:doi/10.7567/1882-0786/aaf787
権利
Copyright (c) 2019 The Japan Society of Applied Physics
Theoretical estimation of the upper limit of critical current density by flux pinning in superconductors under the influence of kinetic energy
1882-0786_aaf787.pdf
(856.41KB)
