Enhanced transport critical current density in Sn-added SmFeAsO1-xF x tapes prepared by the PIT method

Qianjun Zhang; Xianping Zhang; Chao Yao; He Huang; Dongliang Wang; Chiheng Dong; Yanwei Ma; Hiraku Ogino; Satoshi Awaji

doi:10.1088/1361-6668/aa6850

Enhanced transport critical current density in Sn-added SmFeAsO_1-xF _x tapes prepared by the PIT method

Qianjun Zhang, Xianping Zhang, Chao Yao, He Huang, Dongliang Wang, Chiheng Dong, Yanwei Ma, Hiraku Ogino, Satoshi Awaji

High Field Laboratory for Superconducting Materials

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

SmFeAsO_1-xF_x tapes were fabricated by the ex situ powder-in-tube (PIT) method followed by a low temperature (300 °C) ordinary sintering process. The purity of the superconducting core of the tapes has been largely improved. The reduction of SmAs and FeAs impurities has significantly enhanced the transport J _c of the SmFeAsO_1-xF_x tapes. At 4.2 K, the transport J _c values of the SmFeAsO_1-xF_x tapes have achieved 1.8 ×10⁴ A cm^-2 at 0.6 T and 2.9 ×10² A cm^-2 at 10 T, which is the highest among 1111 type wires and tapes. Similar field dependences of transport J _c and magnetic J _c imply improved grain connectivity in the superconducting cores.

Original language	English
Article number	065004
Journal	Superconductor Science and Technology
Volume	30
Issue number	6
DOIs	https://doi.org/10.1088/1361-6668/aa6850
Publication status	Published - 2017 May 15

Keywords

1111 type
SmOFeAs
iron-based superconductors
pnictides
powder-in-tube method
transport critical current density
wires and tapes

ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

Access to Document

10.1088/1361-6668/aa6850

Cite this

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title = "Enhanced transport critical current density in Sn-added SmFeAsO1-xF x tapes prepared by the PIT method",

abstract = "SmFeAsO1-xFx tapes were fabricated by the ex situ powder-in-tube (PIT) method followed by a low temperature (300 °C) ordinary sintering process. The purity of the superconducting core of the tapes has been largely improved. The reduction of SmAs and FeAs impurities has significantly enhanced the transport J c of the SmFeAsO1-xFx tapes. At 4.2 K, the transport J c values of the SmFeAsO1-xFx tapes have achieved 1.8 ×104 A cm-2 at 0.6 T and 2.9 ×102 A cm-2 at 10 T, which is the highest among 1111 type wires and tapes. Similar field dependences of transport J c and magnetic J c imply improved grain connectivity in the superconducting cores.",

keywords = "1111 type, SmOFeAs, iron-based superconductors, pnictides, powder-in-tube method, transport critical current density, wires and tapes",

author = "Qianjun Zhang and Xianping Zhang and Chao Yao and He Huang and Dongliang Wang and Chiheng Dong and Yanwei Ma and Hiraku Ogino and Satoshi Awaji",

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T1 - Enhanced transport critical current density in Sn-added SmFeAsO1-xF x tapes prepared by the PIT method

AU - Zhang, Qianjun

AU - Zhang, Xianping

AU - Yao, Chao

AU - Huang, He

AU - Wang, Dongliang

AU - Dong, Chiheng

AU - Ma, Yanwei

AU - Ogino, Hiraku

AU - Awaji, Satoshi

PY - 2017/5/15

Y1 - 2017/5/15

N2 - SmFeAsO1-xFx tapes were fabricated by the ex situ powder-in-tube (PIT) method followed by a low temperature (300 °C) ordinary sintering process. The purity of the superconducting core of the tapes has been largely improved. The reduction of SmAs and FeAs impurities has significantly enhanced the transport J c of the SmFeAsO1-xFx tapes. At 4.2 K, the transport J c values of the SmFeAsO1-xFx tapes have achieved 1.8 ×104 A cm-2 at 0.6 T and 2.9 ×102 A cm-2 at 10 T, which is the highest among 1111 type wires and tapes. Similar field dependences of transport J c and magnetic J c imply improved grain connectivity in the superconducting cores.

AB - SmFeAsO1-xFx tapes were fabricated by the ex situ powder-in-tube (PIT) method followed by a low temperature (300 °C) ordinary sintering process. The purity of the superconducting core of the tapes has been largely improved. The reduction of SmAs and FeAs impurities has significantly enhanced the transport J c of the SmFeAsO1-xFx tapes. At 4.2 K, the transport J c values of the SmFeAsO1-xFx tapes have achieved 1.8 ×104 A cm-2 at 0.6 T and 2.9 ×102 A cm-2 at 10 T, which is the highest among 1111 type wires and tapes. Similar field dependences of transport J c and magnetic J c imply improved grain connectivity in the superconducting cores.

KW - 1111 type

KW - SmOFeAs

KW - iron-based superconductors

KW - pnictides

KW - powder-in-tube method

KW - transport critical current density

KW - wires and tapes

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