Highly c-oriented RuSr2(Eu1.5Ce0.5)Cu2O10−δ thin film growth by pulsed laser deposition and subsequent post-annealing

✍ Scribed by W.Q. Lu; Y. Yamamoto; I. Ohkubo; V.V. Petrykin; M. Kakihana; Y. Matsumoto; H. Koinuma

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 310 KB
• Volume: 403
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/j.physc.2003.11.003

✦ Synopsis

A RuSr 2 (Eu 1:5 Ce 0:5 )Cu 2 O 10Àd (Ru-1222) sintered target was laser ablated into thin films on SrTiO 3 (0 0 1) substrates at temperatures between room temperature and 800 °C. Although the as-deposited films did not exhibit Ru-1222 phase, the films deposited at temperatures between 600 and 780 °C were successfully crystallized and exhibited highly c-axis oriented Ru-1222 phase by the subsequent thermal treatment under appropriate conditions. The films grown at 740 °C and annealed at 1060 °C in 1 atm oxygen flow for 1 h showed a weak ferromagnetic behavior below 130 K and the onset of superconducting transition at 32.4 K. The coexistence of ferromagnetism and superconductivity was observed at temperatures below 32.4 K.