Single-crystal growth of the ternary BaFe$_2$As$_2$ phase using the vertical Bridgman technique

Rei Morinaga; Kittiwit Matan; Hiroyuki S. Suzuki; Taku J. Sato

doi:10.1143/JJAP.48.013004

Single-crystal growth of the ternary BaFe$_2$As$_2$ phase using the vertical Bridgman technique

Superconductivity 2009-04-24 v2 Materials Science

Authors: Rei Morinaga , Kittiwit Matan , Hiroyuki S. Suzuki , Taku J. Sato

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Abstract

Ternary Ba-Fe-As system has been studied to determine a primary solidification field of the BaFe $_2$ As $_2$ phase. We found that the BaFe $_2$ As $_2$ phase most likely melts congruently and primarily solidifies either in the FeAs excess or Ba $_{x}$ As $_{100-x}$ excess liquid. Knowing the primary solidification field, we have performed the vertical Bridgman growth using the starting liquid composition of Ba $_{15}$ Fe $_{42.5}$ As $_{42.5}$ . Large single crystals of the typical size 10x4x2 mm $^3$ were obtained and their quality was confirmed by X-ray Laue and neutron diffraction.

Keywords

single-crystal growth vertical Bridgman technique BaFe2As2 ternary phase primary solidification field congruent melting X-ray Laue diffraction neutron diffraction

Cite

@article{arxiv.0809.3084,
  title  = {Single-crystal growth of the ternary BaFe$_2$As$_2$ phase using the vertical Bridgman technique},
  author = {Rei Morinaga and Kittiwit Matan and Hiroyuki S. Suzuki and Taku J. Sato},
  journal= {arXiv preprint arXiv:0809.3084},
  year   = {2009}
}

Comments

Submitted to Jpn. J. Appl. Phys.; revised

Single-crystal growth of the ternary BaFe$_2$As$_2$ phase using the vertical Bridgman technique

Abstract

Keywords

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