Role of defects in increasing the critical current density of reel-to-reel PLD (Eu,Er)Ba2Cu3Oy+BaHfO3-coated conductors

被引:1
作者
Suzuki, Takumi [1 ]
Sakuma, Keita [2 ]
Ohta, Junya [1 ]
Ogimoto, Yuki [1 ]
Takahashi, Ko [1 ]
Ozaki, Toshinori [3 ]
Ibi, Akira [4 ]
Izumi, Teruo [4 ]
Yamaki, Tetsuya [5 ]
Okazaki, Hiroyuki [5 ]
Yamamoto, Shunya [5 ]
Koshikawa, Hiroshi [5 ]
Okada, Tatsunori [6 ]
Awaji, Satoshi [6 ]
Miura, Masashi [1 ,7 ]
机构
[1] Seikei Univ, 3-3-1 Kichijoji Kitamachi, Tokyo 1808633, Japan
[2] Univ Yamanashi, 4-3-11 Takeda, Kofu 4008511, Japan
[3] Kwansei Gakuin Univ, 1 Gakuen Uegahara, Sanda, Hyogo 6691330, Japan
[4] Natl Inst Adv Ind Sci & Technol, 1-2-1 Namiki, Tsukuba, Ibaraki 3058564, Japan
[5] Natl Inst Quantum Sci & Technol, 1233 Watanuki Machi, Takasaki, Gunma 3701292, Japan
[6] Tohoku Univ, Inst Mat Res, Katahira 2-1-1,Aoba Ku, Sendai 9808577, Japan
[7] JST FOREST, 7 Gobancho,Chiyoda Ku, Tokyo 1020076, Japan
关键词
superconductivity; REBCO coated conductor; critical current density; ion irradiation; COATED CONDUCTORS; IRRADIATION; MECHANISM;
D O I
10.35848/1347-4065/ad45d0
中图分类号
O59 [应用物理学];
学科分类号
摘要
Given their excellent superconducting properties, REBa2Cu3Oy (REBCO)-coated conductors (CCs) are anticipated to be utilized in a variety of magnet applications. To further increase the critical current density J(c) of these materials to levels needed for commercial applications, this study employs reel-to-reel (RTR) pulsed laser deposition (PLD) to fabricate REBCO+BaHfO3 (BHO) CCs. PLD creates BHO nanorods, which serve as flux-pinning defects. The material is subjected to O2+ irradiation to introduce more defects. The irradiation-induced defects serve as flux-pinning centers to the REBCO+BHO-nanorod CCs, increasing J(c) along the c axis and over a wide range of magnetic-field angles compared with conventional REBCO+BHO-nanorod CCs. Both nanorods and irradiation-induced defects are demonstrated to be effective pinning centers in this material.
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页数:6
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