Oxygen ion irradiation of Tl2Ca2Ba2Cu3O10 superconductors
- 31 July 1989
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 55 (5) , 507-509
- https://doi.org/10.1063/1.102431
Abstract
The superconducting transport properties of polycrystalline Tl2Ca2Ba2Cu3O10 thin films irradiated with 740 keV oxygen ions were monitored as a function of fluence. Both the transition temperature (Tc ) and the critical current density (Jc ) decreased rapidly with fluence; however, the transition temperature onset remained constant. A fluence of 2×1014 O/cm2 (0.028 dpa) was sufficient to eliminate superconductivity in the films. Jc at 76 K decreased from 25 000 A/cm2 in the unirradiated sample to 2000 A/cm2 after a fluence of 2.1×1013 O/cm2. A room‐temperature anneal caused both Tc and the normal‐state resistivity to recover slightly after low‐fluence irradiations.Keywords
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