| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve on magnetic field characteristics of an ReBCO superconductor having different characteristics at a high magnetic field. Ž<P>SOLUTION: On a biaxially oriented metal base plate 11, a first intermediate layer 12a made of Ce<SB>2</SB>Zr<SB>2</SB>O<SB>7</SB>by an MOD method and a second intermediate layer 12b made of CeO<SB>2</SB>by a PLD method are laminated, on which, a superconducting layer 13 made by a TFA-MOD method is laminated. The superconducting layer 13 has a 3-layer structure with a film thickness of 1.1 μm sequentially laminating a first superconducting layer 13a made of YBa<SB>1.5</SB>Cu<SB>3</SB>O<SB>y</SB>, a second superconducting layer 13b made of SmBa<SB>1.5</SB>Cu<SB>3</SB>O<SB>y</SB>, and a third superconducting layer 13c made of YBa<SB>2.0</SB>Cu<SB>3</SB>O<SB>y</SB>. Jc of the superconducting wire 10 shows a value each of [3.46×10<SP>4</SP>A/cm<SP>2</SP>]<SB>OT</SB>in a self-magnetic field (77K), and [0.83×10<SP>4</SP>A/cm<SP>2</SP>]<SB>3T</SB>in an outside magnetic field (B//c axis, 77K) of 3T. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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