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Epitaxial Growth of Superconducting Ba(Fe1-xCox)2As2 Thin Films on Technical IBAD-MgO Substrates

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arxiv 1012.0894 v1 pith:MQTNGSBM submitted 2010-12-04 cond-mat.supr-con cond-mat.mtrl-sci

Epitaxial Growth of Superconducting Ba(Fe1-xCox)2As2 Thin Films on Technical IBAD-MgO Substrates

classification cond-mat.supr-con cond-mat.mtrl-sci
keywords coatedconductorfilmssuperconductingba-122beenco-dopedcurrent
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The biaxially textured growth of superconducting Co-doped BaFe2As2 (Ba-122) thin films has been realized on ion beam assisted deposition (IBAD) MgO coated conductor templates by employing an iron buffer architecture. The iron pnictide coated conductor showed a superconducting transition temperature of 21.5 K, which is slightly lower than that of Co-doped Ba-122 films on single crystalline MgO substrates. A self-field critical current density of over 10^5 A/cm2 has already been achieved even at 8 K. The current experiment highlights the potential of possible coated conductor applications of the iron-based superconductors.

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