Clusters of Long-c Lattice Phase in SmBa2Cu3O y Films Grown in Low-PO2 Atmosphere by Pulse Laser Deposition

Akio Tsukada, In Gann Chen, Robert Hammond, Malcolm Beasley

Research output: Contribution to journalArticlepeer-review

Abstract

Phase stability diagram and boundary of a- and c-axis orientation of SmBa2Cu3Oy films grown by pulsed laser deposition were studied. In the study, anomalously long-c tetragonal SmBa 2Cu3Oy were discovered in films grown in low oxygen pressure. The long-c phase has 1% longer c-axis lattice constant compared to normal-c orthorhombic SmBa2Cu3Oy and has lower superconducting transition temperature (∼70 K). The long-c phase is able to coexist in the normal-c matrix over a range of oxygen pressure and growth temperature.

Original languageEnglish
Article number4982614
Pages (from-to)3383-3386
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume19
Issue number3
DOIs
Publication statusPublished - 2009 Jun 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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