PIEHLER, A and STROBEL, JP and RESCHAUER, N and LOW, R and SCHONBERGER, R and RENK, KF and KRAUS, M and DANIEL, J and SAEMANNISCHENKO, G (1994) CRITICAL-CURRENT DENSITY OF TLBA2CA2CU3O9 THIN-FILMS ON MGO(100) IN MAGNETIC-FIELDS. PHYSICA C, 223 (3-4). pp. 391-395. ISSN 0921-4534,
Full text not available from this repository.Abstract
We report on the critical current density of TlBa2Ca2Cu3O9 thin films on (100) MgO substrates in magnetic fields. Single-phase and highly c-axis oriented thin films were prepared by laser ablation in combination with thermal evaporation of Tl2O3. Scanning electron microscope investigations indicated a flat plate-like microstructure and DC magnetization measurements showed the onset of superconductivity at approximately 115 K. The critical current density j(c) was determined from magnetization cycles. TypiCal values of j(c) Were 9 X 10(5) A/cm2 at 6 K and 2.5 X 10(5) A/cm2 at 77 K. In a magnetic field to 1 T applied parallel to the c-axis the critical current densities were 3 x 10(5) A/cm2 at 6 K and 3 x 10(3) A/cm2 at 77 K. The decrease of j(c) at higher magnetic fields is discussed and attributed to the microstructure of the TlBa2Ca2Cu3O9 thin films.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:40 |
| URI: | https://pred.uni-regensburg.de/id/eprint/53324 |
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