DocumentCode
3330
Title
Enhanced Flux Pinning Properties in Self-Assembled Magnetic
Nanoparticles Doped
https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3330
 nanoparticles are introduced into YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub> (YBCO) thin films as both cap and buffer layers to enhance the flux pinning properties. CFO nanoparticles are incorporated into the YBCO matrix by alternative laser ablation of the YBCO and CFO targets by employing the pulsed laser deposition method, which is compatible with the commercial processing method of coated conductors. By introducing ferromagnetic nanoinclusions, both magnetic and defect pinning can be incorporated into YBCO thin films to achieve stronger pinning effects under higher applied magnetic field regimes. Detailed microstructural studies are conducted to verify the morphologies of all doped samples. Both self-field and in-field performance (J<sub>c</sub><sup>sf</sup> and J<sub>c</sub><sup>in-field</sup>(H//c)) measured at various temperatures (65, 40, and 5 K) are studied. The results suggest that the CFO nanoparticle cap is an ideal approach to introduce ordered magnetic pinning centers in the YBCO thin films, which shows enhanced superconducting properties both at self-field and under high applied field regimes without degrading YBCO´s intrinsic properties.</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; buffer layers; cobalt compounds; critical current density (superconductivity); ferromagnetic materials; flux pinning; high-temperature superconductors; magnetic particles; nanomagnetics; nanoparticles; pulsed laser deposition; self-assembly; superconducting thin films; yttrium compounds; YBCO matrix; YBCO:CoFe<sub>2</sub>O<sub>4</sub>; buffer layers; cap layers; critical current density; defect pinning; ferromagnetic nanoinclusions; flux pinning properties; in-field performance; laser ablation; magnetic field regimes; magnetic pinning; microstructure; ordered magnetic pinning centers; pinning effects; pulsed laser deposition method; self-assembled magnetic nanoparticle doped thin films; self-field performance; superconducting properties; temperature 40 K; temperature 5 K; temperature 65 K; Buffer layers; Magnetic field measurement; Magnetic flux; Nanoparticles; Superconducting magnets; Temperature measurement; Yttrium barium copper oxide; Coated conductor; critical current density; ferromagnetic nanoparticles; flux-pinning;</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'>Publisher</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>ieee</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.2013.2238277</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'>6407831</div></div>
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