Single crystal growth of BaFe${}_{2-x}$Co${}_x$As${}_2$ without fluxing agent

Abstract

We report a simple, reliable method to grow high quality BaFe${}_{2-x}$Co${}_x$As${}_2$ single crystal samples without using any fluxing agent. The starting materials for the single crystal growth come from well-crystallized polycrystalline samples and the highest growing temperature can be 1493 K. The as-grown crystals have typical dimensions of 4$\times 3\times$0.5 mm${}^3$ with c-axis perpendicular to the shining surface. We find that the samples have very large current carrying ability, indicating that the samples have good potential technological applications.

8 pages, 4 figures, accepted by Journal of Superconductivity and Novel Magnetism

References in corpus (5)

• To What Extent Iron-Pnictide New Superconductors Have Been Clarified: A Progress Report
• Very High Field Two-Band Superconductivity in LaFeAsO_0.89F_0.11
• Anisotropic thermodynamic and transport properties of single crystalline (Ba${}_{1-x}$K${}_x$)Fe${}_2$As${}_2$ (x = 0 and 0.45)
• Possible superconductivity above 25 K in single crystalline Co-doped BaFe${}_2$As${}_2$
• High Critical Current Density 4 MA/cm2 in Co-Doped BaFe2As2 Epitaxial Films Grown on (La, Sr)(Al, Ta)O3 Substrates without Buffer Layers