a b s t r a c tThe J c and H irr values at 77 K of ternary light-rare-earth compounds, LREBa 2 Cu 3 O y "LRE-123", are usually high enough to serve in various applications. Several sources of vortex pinning can be in these composites tailored to fit the needs of the particular application. The list comprises LRE/Ba solid solution, oxygen vacancies, large particles of secondary phases, twin planes, nanoscale lamellas, etc. By means of the latter defects one can achieve a very high irreversibility field. Refine…
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