Pulsed laser deposition of ErBa 2 Cu 3 O 7-δ films with BaZrO 3 nano-particles by using a novel target

S. Yasunaga, Masashi Mukaida, S. Horii, R. Kita, S. Kato, A. Ichinose, Y. Yoshida, K. Matsumoto, Ryo Teranishi, K. Yamada, N. Mori

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Abstract

We fabricated an ErBa 2 Cu 3 O 7-δ (ErBCO) thin film with BaZrO 3 (BZO) doping (BZO + ErBCO) on a SrTiO 3 (STO) substrate by a pulsed laser deposition (PLD) method using a novel target which consists of two parts. One is ErBCO for a superconducting phase, the other is rectangular shaped BZO for pinning centers. From an X-ray diffraction (XRD) pattern, the ErBCO film was c-axis oriented and in-plane aligned on the STO substrate. Microstructures of the BZO + ErBCO film were observed by a transmission electron microscope (TEM). In the TEM image, nano-particles of BZO were observed in the film, not nano-rods. This result means that the novel target enables to dope BZO nano-particles into the film without any target changing. From the TEM image and thickness of the sample, a volume percentage of BZO nano-particles is calculated to be 7.3 vol%. It is almost the same to the calculated value from the percentage of laser irradiating area.

Original languageEnglish
Pages (from-to)900-903
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume463-465
Issue numberSUPPL.
DOIs
Publication statusPublished - Oct 1 2007

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All Science Journal Classification (ASJC) codes

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

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