Evolution of tetragonal phase in the FeSe wire fabricated by a novel chemical-transformation PIT process

Hiroki Izawa; Yoshikazu Mizuguchi; Toshinori Ozaki; Yoshihiko Takano; Osuke Miura

doi:10.1143/JJAP.51.010101

Evolution of tetragonal phase in the FeSe wire fabricated by a novel chemical-transformation PIT process

Superconductivity 2011-12-21 v1

Authors: Hiroki Izawa , Yoshikazu Mizuguchi , Toshinori Ozaki , Yoshihiko Takano , Osuke Miura

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We fabricated superconducting FeSe wires by the chemical-transformation PIT process. The obvious correlation between annealing temperature and phase transformation was observed. Annealing above 500^{\circ}C produced wire-core transformation from hexagonal to tetragonal phase. Furthermore the hexagonal phase completely transformed into the tetragonal phase by annealing at 1000^{\circ}C. With increasing annealing temperature, the superconducting property was dramatically improved, associated with the evolution of the tetragonal phase.

Keywords

FeSe wire chemical-transformation PIT process tetragonal phase hexagonal phase phase transformation annealing temperature superconducting property

Cite

@article{arxiv.1106.3891,
  title  = {Evolution of tetragonal phase in the FeSe wire fabricated by a novel chemical-transformation PIT process},
  author = {Hiroki Izawa and Yoshikazu Mizuguchi and Toshinori Ozaki and Yoshihiko Takano and Osuke Miura},
  journal= {arXiv preprint arXiv:1106.3891},
  year   = {2011}
}

Comments

14 pages, 6 figures

Evolution of tetragonal phase in the FeSe wire fabricated by a novel chemical-transformation PIT process

Abstract

Keywords

Cite

Comments

Related papers