TY - JOUR
T1 - Estimate of attainable critical current density in superconducting yba2cu3o7-ै
AU - Matsushita, Teruo
AU - Iwakuma, Masataka
AU - Sudo, Yasuo
AU - Ni, Baorong
AU - Kisu, Takanobu
AU - Funaki, Kazuo
AU - Takeo, Masakatsu
AU - Yamafuji, Kaoru
PY - 1987/9
Y1 - 1987/9
N2 - Attainable critical current density in oxide superconductor YBa2Cu3O7-ै is estimated by an ordinary analyzing method in flux pinning phenomena with superconducting parameters obtained from a magnetization measurement. The pinning mechanisms considered here are an anisotropy in the upper critical field and an electron scattering effect for grain boundaries and twinning planes. While the elementary pinning force of these planar defects is small due to a small thermodynamic critical field at 77 K, a critical current density comparable to that of Nb-Ti at 4.2 K is expected to be attained by increasing the pin concentration.
AB - Attainable critical current density in oxide superconductor YBa2Cu3O7-ै is estimated by an ordinary analyzing method in flux pinning phenomena with superconducting parameters obtained from a magnetization measurement. The pinning mechanisms considered here are an anisotropy in the upper critical field and an electron scattering effect for grain boundaries and twinning planes. While the elementary pinning force of these planar defects is small due to a small thermodynamic critical field at 77 K, a critical current density comparable to that of Nb-Ti at 4.2 K is expected to be attained by increasing the pin concentration.
UR - http://www.scopus.com/inward/record.url?scp=0023416984&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0023416984&partnerID=8YFLogxK
U2 - 10.1143/JJAP.26.L1524
DO - 10.1143/JJAP.26.L1524
M3 - Article
AN - SCOPUS:0023416984
VL - 26
SP - 1524
EP - 1526
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 9A
ER -