Single-crystal growth and characterization of REBa2Cu4O8 and Y1-xCaxBa2Cu4O8

C. A. Hijar, C. L. Stern, Kenneth R Poeppelmeier, K. Rogacki, Z. Chen, B. Dabrowski

Research output: Contribution to journalArticle

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Abstract

Crystals of REBa2Cu4O8 (RE = Yb, Tm, Er, Ho, Dy, and Y1-xCax) were grown at 1100°C and 600 bar of O2 pressure in a hot isostatic press furnace. Single crystal X-ray diffraction data show that all compounds crystallized in space group Ammm (#65) with the approximate lattice parameters a ≈ 3.82 A ̊, b ≈ 3.86 A ̊, c ≈ 27.1 A ̊, and Z = 2 As the ionic radius of the lanthanide decreased, the lattice parameters decreased. Substitution of calcium in Y1-xCaxBa2Cu4O8 crystals (x ∼ 0.02) increased Tc to 87 K.

Original languageEnglish
Pages (from-to)13-21
Number of pages9
JournalPhysica C: Superconductivity and its Applications
Volume252
Issue number1-2
DOIs
Publication statusPublished - Oct 1 1995

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Crystallization
Crystal growth
Lattice constants
crystal growth
lattice parameters
Single crystals
Lanthanoid Series Elements
Crystals
single crystals
Rare earth elements
crystals
furnaces
calcium
Calcium
Furnaces
Substitution reactions
substitutes
X ray diffraction
radii
diffraction

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Single-crystal growth and characterization of REBa2Cu4O8 and Y1-xCaxBa2Cu4O8 . / Hijar, C. A.; Stern, C. L.; Poeppelmeier, Kenneth R; Rogacki, K.; Chen, Z.; Dabrowski, B.

In: Physica C: Superconductivity and its Applications, Vol. 252, No. 1-2, 01.10.1995, p. 13-21.

Research output: Contribution to journalArticle

Hijar, C. A. ; Stern, C. L. ; Poeppelmeier, Kenneth R ; Rogacki, K. ; Chen, Z. ; Dabrowski, B. / Single-crystal growth and characterization of REBa2Cu4O8 and Y1-xCaxBa2Cu4O8 In: Physica C: Superconductivity and its Applications. 1995 ; Vol. 252, No. 1-2. pp. 13-21.
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AU - Chen, Z.

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