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Phase evolution in PLD MgB2 films during the in situ annealing process

Journal Article


Abstract


  • The transformation of zero-field-cooled (ZFC) magnetization curves of PLD MgB2 films annealed in situ for different dwell times and at different temperatures is studied within the context of structural analysis. The PLD films were deposited using an off-axis geometry followed by two series of annealing conditions: the dwell time series and the annealing temperature series. ZFC magnetization curves were obtained in an MPMS magnetometer from samples that had been cut into similar shapes. XRD scans on the two series of film samples show enhanced (001) and (002) MgB2 peaks till a dwell time of 9 min at a 650 ðC and a 800 ðC annealing temperature. TEM results show a granular transformation from an un-annealed film to a 700 ðC 9 min in situ annealed film. The possible structural development with annealing time and annealing temperature is then discussed.

Authors


  •   Zhao, Yue
  •   Wu, Yi Sun (external author)
  •   Kong, Charlie (external author)
  •   Wexler, David
  •   Vos, Maarten (external author)
  •   Went, Michael (external author)
  •   Dou, Shi Xue

Publication Date


  • 2007

Citation


  • Zhao, Y., Wu, Y., Kong, C., Wexler, D., Vos, M., Went, M. & Dou, S. Xue. (2007). Phase evolution in PLD MgB2 films during the in situ annealing process. Superconductor Science and Technology, 20 (11), S467-S471.

Scopus Eid


  • 2-s2.0-36448939797

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/2986

Has Global Citation Frequency


Start Page


  • S467

End Page


  • S471

Volume


  • 20

Issue


  • 11

Abstract


  • The transformation of zero-field-cooled (ZFC) magnetization curves of PLD MgB2 films annealed in situ for different dwell times and at different temperatures is studied within the context of structural analysis. The PLD films were deposited using an off-axis geometry followed by two series of annealing conditions: the dwell time series and the annealing temperature series. ZFC magnetization curves were obtained in an MPMS magnetometer from samples that had been cut into similar shapes. XRD scans on the two series of film samples show enhanced (001) and (002) MgB2 peaks till a dwell time of 9 min at a 650 ðC and a 800 ðC annealing temperature. TEM results show a granular transformation from an un-annealed film to a 700 ðC 9 min in situ annealed film. The possible structural development with annealing time and annealing temperature is then discussed.

Authors


  •   Zhao, Yue
  •   Wu, Yi Sun (external author)
  •   Kong, Charlie (external author)
  •   Wexler, David
  •   Vos, Maarten (external author)
  •   Went, Michael (external author)
  •   Dou, Shi Xue

Publication Date


  • 2007

Citation


  • Zhao, Y., Wu, Y., Kong, C., Wexler, D., Vos, M., Went, M. & Dou, S. Xue. (2007). Phase evolution in PLD MgB2 films during the in situ annealing process. Superconductor Science and Technology, 20 (11), S467-S471.

Scopus Eid


  • 2-s2.0-36448939797

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/2986

Has Global Citation Frequency


Start Page


  • S467

End Page


  • S471

Volume


  • 20

Issue


  • 11