Автор |
A A Zhukov |
Автор |
W Jahn |
Автор |
B Runtsch |
Автор |
H Kupfer |
Автор |
Y Yamada |
Автор |
R Flukiger |
Дата выпуска |
1992-04-01 |
dc.description |
Magnetic and transport properties of textured Bi(2223) tape with high critical transport current density (j<sub>c</sub>(77 K, 0 T)=2.8*10<sup>4</sup> A cm<sup>-2</sup>) were studied. Magnetic measurements show nongranular behaviour of shielding and transport currents for the magnetic field orientation perpendicular to the tape plane B perpendicular to p at low temperatures and low fields. At high magnetic fields and temperatures, however, quite large differences were observed, which depend on magnetic field sweep rate B and voltage criteria E<sub>c</sub>. This is connected with granularity and inhomogeneity of the current flow. It was established that the magnetic field dependence of the critical current has a general scaling behaviour: j<sub>c</sub>(B, B, T)=j<sub>c</sub>(0, B, T) f(B/B<sub>0</sub>(B, T)) where the scaling function f becomes exp(-B/B<sub>0</sub>) for B/B<sub>0</sub>>or=1. The scaling parameter B<sub>0</sub> is proportional to the irreversibility field B<sub>irr</sub>. Both B<sub>0</sub> and B<sub>irr</sub> show an exponential temperature dependence. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Transport currents and magnetic properties of textured Bi(2223) tape |
Тип |
paper |
DOI |
10.1088/0953-2048/5/4/011 |
Electronic ISSN |
1361-6668 |
Print ISSN |
0953-2048 |
Журнал |
Superconductor Science and Technology |
Том |
5 |
Первая страница |
262 |
Последняя страница |
268 |
Аффилиация |
A A Zhukov; Dept. of Phys., Moscow State Univ., Russia |
Аффилиация |
W Jahn; Dept. of Phys., Moscow State Univ., Russia |
Аффилиация |
B Runtsch; Dept. of Phys., Moscow State Univ., Russia |
Аффилиация |
H Kupfer; Dept. of Phys., Moscow State Univ., Russia |
Аффилиация |
Y Yamada; Dept. of Phys., Moscow State Univ., Russia |
Аффилиация |
R Flukiger; Dept. of Phys., Moscow State Univ., Russia |
Выпуск |
4 |