|
|||||
|
|
Effect of Ag and Li ion irradiation on superconducting Tl2Ca2Ba2Cu3O10 single crystals |
|
| Authors: | MR Singh CL PrajapatAnjana Dogra Ravi KumarG Yashwant G RavikumarSK Gupta Soo Hyun KimIn-sun Jo Sung-Ik Lee |
| Affiliation: | a Technical Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India b Centre for Materials Science and Engineering NIT, Hamirpur 177 005, India c National Creative Research Initiative Center for Superconductivity, Department of Physics, Sogang University, Seoul 121-742, Republic of Korea d Department of Physics, University of Texas at Austin, Austin, TX 78712, United States e Center for Superconductivity, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea |
| Abstract: | The effect of irradiation by 50 MeV Li3+ and 200 MeV Ag15+ ions on single crystals of Tl2Ca2Ba2Cu3O10 (Tl2223) superconductor has been investigated at different fluences. Isothermal magnetization hysteresis loops have been recorded at different temperatures using a SQUID magnetometer and the effect of irradiation on the critical current density, irreversible field, second magnetization peak and pinning force has been studied. Irradiation by 200 MeV Ag15+ ions resulted in increased hysteresis and irreversibility field while no change in second magnetization peak position and critical temperature was observed. A broadening in the hysteresis loop before the second magnetization peak was also observed for the crystals irradiated by Li3+ ions. Annealing of irradiated crystals at 500 °C resulted in reduction of point defects created by Li3+ ions. |
| Keywords: | Ions irradiation Tl2223 Second magnetization peak (SMP) High temperature superconductor Crystals |
| 本文献已被 ScienceDirect 等数据库收录！ | |