Superconducting properties in magnetic field of (Nd, Eu, Gd)1+xBa2-xCu3Oy thin films prepared by low temperature growth technique

被引：4

作者：

Inoue, K. ^{[1
,6
]}

Yoshida, Y. ^{[1
,6
]}

Ichino, Y. ^{[1
,6
]}

Takai, Y. ^{[1
]}

Matsumoto, K. ^{[2
,6
]}

Ichinose, A. ^{[3
,6
]}

Mukaida, M. ^{[4
,6
]}

Horii, S. ^{[5
,6
]}

机构：

[1] Nagoya Univ, Dept Energy Engn & Sci, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[2] Kyushu Inst Technol, Dept Mat Sci, Tobata Ku, Kitakyushu, Fukuoka 8048550, Japan

[3] Cent Res Inst Elect Power Ind, Kanagawa 2018511, Japan

[4] Kyushu Univ, Dept Mat Sci & Engn, Higashi Ku, Fukuoka 8128581, Japan

[5] Univ Tokyo, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan

[6] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama 3320012, Japan

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2008年 / 468卷 / 15-20期

关键词：

(Nd; Eu; Gd)Ba2Cu3Oy; thin film; low temperature growth; critical current density; pinning;

D O I：

10.1016/j.physc.2008.05.257

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In order to achieve high irreversibility field (B-irr), we fabricated (Nd, Eu, Gd)Ba2Cu3Oy (NEGBCO) thin films by pulsed laser deposition (PLD) method and low temperature growth (LTG) technique. In the LTG-NEG-BCO films on MgO, critical current density (J(c)) at 77 K and magnetic field B = 5 T was 0.13 MA/cm(2) twice as high as that of PLD-NEGBCO/MgO and B-ir, at 77 K reached 11.8 T. Interestingly, the anomalous peaks on the J(c)-B and F-p-B (flux pinning force density F-p = J(c) x B) curves at 77 K and B = 4 T were observed on the LTG-NEGBCO/MgO films. From these results, we can consider that NEGBCO films are good candidates and LTG is an effective technique for improving superconducting properties. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1611 / 1614

页数：4

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