Transport properties of single- and three-core FeSe wires fabricated by a novel chemical-transformation PIT process

被引：36

作者：

Mizuguchi, Yoshikazu ^{[1
]}

Izawa, Hiroki ^{[1
]}

Ozaki, Toshinori ^{[2
]}

Takano, Yoshihiko ^{[2
]}

Miura, Osuke ^{[1
]}

机构：

[1] Tokyo Metropolitan Univ, Dept Elect & Elect Engn, Hachioji, Tokyo 1920397, Japan

[2] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2011年 / 24卷 / 12期

关键词：

SUPERCONDUCTIVITY;

D O I：

10.1088/0953-2048/24/12/125003

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We fabricated single- and three-core superconducting FeSe wires by a novel process based on a chemical transformation from hexagonal FeSe1+d (non-superconducting) to tetragonal FeSe (superconducting) via an optimal supply of Fe from the Fe sheath by annealing. This process enhanced the packing density of the core inside the sheath, owing to an expansion of lattice volume via a chemical transformation from high-density hexagonal FeSe1+d to low-density tetragonal FeSe. The obtained wire showed superconductivity below similar to 10 K and the obtained transport critical current densities at 0 T and 4.2 K were 588 A cm(-2) for the three-core wire and 218 A cm(-2) for the single-core wire.

引用

页数：5

共 2 条

[1] Evolution of Tetragonal Phase in the FeSe Wire Fabricated by a Novel Chemical-Transformation Powder-in-Tube Process
Izawa, Hiroki
Mizuguchi, Yoshikazu
Ozaki, Toshinori
Takano, Yoshihiko
Miura, Osuke
JAPANESE JOURNAL OF APPLIED PHYSICS, 2012, 51 (01)
[2] Fabrication of FeTe0.5Se0.5 Superconducting Wires and Tapes by a Chemical-Transformation PIT Process
Izawa, Hiroki
Mizuguchi, Yoshikazu
Fujioka, Masaya
Takano, Yoshihiko
Miura, Osuke
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2014, 24 (03)

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