Synthesis and characterization of YBa{sub 2}Cu{sub 3}O{sub y} and LaSrGaO{sub y} thin films

Journal Article · Sun Jun 01 04:00:00 EDT 1997 · Advances in Cryogenic Engineering

OSTI ID:482077

Yang, H C; Wang, L M; Yu, H W ^[1]

---

1. National Taiwan Univ., Taipei (Taiwan, Province of China); and others

The X-ray diffraction, Scanning Tunneling Microscope and Scanning Force Microscope were utilized to characterize the surface morphology and the crystal structure of YBa{sub 2}Cu{sub 3}O{sub Y} (YBCO) and LaSrGaO{sub y} (LSGO) thin films on MgO(001) and SrTiO{sub 3}(001) substrates. YBCO and LSGO films were prepared by the rf magnetron sputtering and the pulse laser ablation. The X-ray diffraction pattern shows that YBCO and LSGO films on SrTiO{sub 3}(001) and MgO(001) were epitaxial, with the crystal c-axis perpendicular to the plane of the substrate. Spiral dislocation and layer-cake-like morphology were observed in YBCO films. T{sub c} of the as grown YBCO films was about 90 K with the critical current density greater than 106 A/cm{sup 2} at 77 K.

• OSTI ID: 482077
• Report Number(s): CONF-950722--; CNN: Grant 84-2112-M002-026
• Journal Information: Advances in Cryogenic Engineering, Journal Name: Advances in Cryogenic Engineering Vol. 42B; ISSN 0065-2482; ISSN ACYEAC
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
COPPER OXIDES
CRITICAL CURRENT
GADOLINIUM OXIDES
HIGH-TC SUPERCONDUCTORS
LANTHANUM OXIDES
STRONTIUM OXIDES
SUPERCONDUCTING WIRES
SYNTHESIS
TRANSITION TEMPERATURE
YTTRIUM OXIDES