DocumentCode
1461265
Title
Dependence of Epitaxial 
Thin Films Properties on <sub>2</sub>As<sub>2</sub> (Ba-122) thin films using single crystalline SrTiO<sub>3</sub> (STO) templates on (La,Sr)(Al,Ta)O<sub>3</sub> (LSAT) substrates with pulsed laser deposition (PLD). Here, we report the dependence of the structural and superconducting properties of Ba-122 thin films on STO templates that were 2-150 unit cell (u.c.) thick. We obtained genuine epitaxial thin films with high crystalline quality and excellent superconducting properties for templates above a critical thickness, which was 50 u.c. for our growth condition. Although the quality of Ba-122 is excellent above the critical thickness, the best crystalline quality and superconducting properties were obtained on 100 u.c.-thick STO templates. The best-quality Ba-122 thin films show an on-set transition temperature (T<sub>c</sub>, <sub>on-set</sub>) as high as 22.8 K, a transition width (ΔT<sub>c</sub>) as narrow as 1.3 K, and critical current density (J<sub>c</sub>) as high as 3 MA/cm<sup>2</sup> .</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Keywords</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>barium compounds; critical current density (superconductivity); high-temperature superconductors; pulsed laser deposition; superconducting epitaxial layers; superconducting transition temperature; Ba(Fe<sub>1-x</sub>Co<sub>x</sub>)<sub>2</sub>As<sub>2</sub>; SrTiO<sub>3</sub>; SrTiO<sub>3</sub> templates; critical current density; critical thickness; crystalline quality; epitaxial thin films; pulsed laser deposition; structural properties; superconducting properties; template thickness; transition temperature; transition width; Current measurement; Epitaxial growth; Substrates; Superconducting epitaxial layers; Superconducting transition temperature; X-ray scattering; Iron pnictides; pulsed laser deposition; templates; thin films;</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>fLanguage</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>English</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Journal_Title</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>Applied Superconductivity, IEEE Transactions on</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>ISSN</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>1051-8223</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>DOI</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>10.1109/TASC.2011.2107722</div></div>
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<div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Filename</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>5721753</div></div>
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https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1461265Dependence of Epitaxial
https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1461265