DocumentCode
786856
Title
Thermal Cycling Properties of Bi 
Sr CaCu  stacks. The stacks with an area of 30 times 40 mum<sup>2</sup> were fabricated by self-planarizing process. The samples were coated by overlying layers of SiO<sub>2</sub> and AZ-5206E photoresist. The current-voltage characteristics of the stacks exhibited large hysteresis and multiple branches, which can be explained by a series connection of highly capacitive Josephson junctions. The observed temperature dependence of critical current IC(T) at low temperatures was found to agree with Ambegaokar and Baratoff (AB) relation. The return current I<sub>r</sub>(T) stayed almost constant up to about 40 K, but at higher temperatures the I<sub>r</sub>(T) gradually increased with increasing temperature and fell on the AB line for all stacks. No apparent degradation of the critical and return currents was observed during repeated thermal cycling (up to 100 cycles) between 300 K and 77 K. This suggests that the Bi-2212 stacks fabricated by the self-planarizing process have sufficient stability for thermal cycling.</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'>Josephson effect; bismuth compounds; calcium compounds; critical currents; high-temperature superconductors; strontium compounds; thermal stability; AZ-5206E photoresist; Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>x</sub>; capacitive Josephson junctions; critical currents; current-voltage characteristics; return currents; self-planarizing process; thermal cycling properties; thermal stability; Bi-2212 intrinsic Josephson junction (IJJ); self-planarizing process; thermal cycling;</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.2008.2000907</div></div>
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https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=786856Thermal Cycling Properties of Bi
https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=786856