Simple synthesis of bulk YBa2Cu4O8 using copper iodide and bromide

X. G. Zheng, Hisao Kuriyaki, K. Hirakawa

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We present a solid-state reaction method for simply synthesizing high-Tc superconductor YBa2Cu4O8 (Y-124) without the use of high-pressure oxygen, catalyst or sophisticated heat treatment. This technique is characterized by using cuprous iodide or bromide in place of the conventionally used copper oxide. Tc (zero-resistance) of 77 K and 68 K are obtained for samples using copper iodide and bromide, respectively. For the sample synthesized by use of CuI, X-ray diffraction spectrum suggests a single Y-124 phase. The magnetic susceptibility measurement shows a superconducting transition temperature of 83 K, which is characteristic of the Y-124 superconductor.

Original languageEnglish
Pages (from-to)1601-1602
Number of pages2
JournalSynthetic Metals
Volume71
Issue number1-3
DOIs
Publication statusPublished - Apr 1 1995

Fingerprint

Iodides
Bromides
iodides
Superconducting materials
bromides
Copper
high pressure oxygen
copper
Copper oxides
copper oxides
synthesis
Solid state reactions
Magnetic susceptibility
Superconducting transition temperature
heat treatment
transition temperature
Heat treatment
Oxygen
solid state
magnetic permeability

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Simple synthesis of bulk YBa2Cu4O8 using copper iodide and bromide. / Zheng, X. G.; Kuriyaki, Hisao; Hirakawa, K.

In: Synthetic Metals, Vol. 71, No. 1-3, 01.04.1995, p. 1601-1602.

Research output: Contribution to journalArticle

Zheng, X. G. ; Kuriyaki, Hisao ; Hirakawa, K. / Simple synthesis of bulk YBa2Cu4O8 using copper iodide and bromide. In: Synthetic Metals. 1995 ; Vol. 71, No. 1-3. pp. 1601-1602.
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