Phase control in high-temperature superconductors and novel fabrication procedure for superconducting components

M. Osada, M. Kakihana, M. Käll, J. Bäckström, Lars Börjesson

Research output: Contribution to journalArticle

Abstract

We demonstrate a process by which phase control of high-Tc superconductors can be achieved by photoswitching. In oxygen-deficient YBa 2Cu3O6+d, optical switching between two structural states can be achieved by applying visible and near-infrared light. The states also exhibit different transport properties, and thus this photoswitching gives an opportunity to control metastability and superconducting property in the same crystal as a function of photon density. With the help of scanning near-field optical microscope, we apply such a phase control technique to fabrication procedure for superconducting nano-components such as superconducting wires in insulating film and optical switches.

Original languageEnglish
Pages (from-to)91-94
Number of pages4
JournalKey Engineering Materials
Volume269
Publication statusPublished - 2004
Externally publishedYes

Keywords

  • Photoinduced phase control
  • Photoswitching
  • Superconducting wire
  • Ybacuo

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemical Engineering (miscellaneous)

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  • Cite this

    Osada, M., Kakihana, M., Käll, M., Bäckström, J., & Börjesson, L. (2004). Phase control in high-temperature superconductors and novel fabrication procedure for superconducting components. Key Engineering Materials, 269, 91-94.