Transport and magnetic properties of Co-doped BaFe_{2}As_{2} epitaxial thin films

Abstract

We report resistivity, Hall coefficient, current-voltage characteristics, and magneto-optical imaging measurements of epitaxial Co-doped BaFe_{2}As_{2} thin films deposited on MgO(001) substrate. The Hall resistivity of the films has a substantial contribution arising from anomalous Hall effect of ferromagnetic components. The critical current density (J_{c}) of the films is ~2 MA/cm^{2} at low temperatures. Differential magneto-optical images of the remanent state give similar J_{c} values and also exhibit presence of extended defects in the film.

9 pages, 4 figures

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• Superconductivity in Epitaxial Thin Films of Co-Doped SrFe2As2 with Bilayered FeAs Structures and their Magnetic Anisotropy
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• Epitaxial Growth of NdFeAsO Thin Films by Molecular Beam Epitaxy
• DC superconducting quantum interference devices fabricated using bicrystal grain boundary junctions in Co-doped BaFe2As2 epitaxial films
• Magneto-optical study of Ba(Fe${}_{1-x}$T${}_x$)${}_2$As${}_2$ (T=Co, Ni) single crystals irradiated with heavy-ions

Cited by in corpus (7)

• Progress in wire fabrication of iron-based superconductors
• Thermodynamic parameters of single- or multi-band superconductors derived from self-field critical currents
• Thin Film Growth and Device Fabrication of Iron-Based Superconductors
• Universal scaling of the self-field critical current in superconductors: from sub-nanometre to millimetre size
• Identical effects of indirect and direct electron doping of superconducting BaFe2As2 thin films
• Anisotropic critical currents in FeSe0.5Te0.5 films and the influence of neutron irradiation
• Enhancement of the critical current by surface irregularities in Fe-based superconductors