Abstract
We report strong negative magnetoresistance in epitaxial PrBa2Cu3Ox films prepared by laser ablation on SrTiO3 substrates. Magnetoresistance appears at temperatures below ∼50 K. At 10 K its value reaches 90% in a magnetic field of 0.5 T. The magnetoresistance is strongly suppressed near 20 K where the Pr ions undergo antiferromagnetic ordering. Post annealing in flowing oxygen reduces the magnetoresistance by a factor of about three and slightly increases the antiferromagnetic ordering temperature.
Original language | English |
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Pages (from-to) | 529-530 |
Number of pages | 2 |
Journal | Physica C Superconductivity |
Volume | 341-348 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Nov 2000 |
Event | International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors, 6th - , United Kingdom Duration: 1 Jan 2000 → … |