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

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2024年 / 63卷 / 06期

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.

引用

页数：6

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