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Cross-over between channeling and pinning at twin boundaries in YBa2Cu3O7 thin films
A. Palau, J. H. Durrell, J. L. MacManus-Driscoll +5
The critical current (Jc) of highly twinned YBa2Cu3O7 films has been measured as a function of temperature, magnetic field and angle. For much of the parameter space we observe a s…
Alignment of Carbon Nanotube Additives for Improved Performance of Magnesium Diboride Superconductors
Shi Xue Dou, Waikong Yeoh, Olga Shcherbakova +8
The rapid progress on MgB2 superconductor since its discovery[1] has made this material a strong competitor to low and high temperature superconductors (HTS) for applications with…
Strong Pinning Enhancement in MgB2 Using Very Small Dy2O3 Additions
S. K. Chen, M. Wei, J. L. MacManus-Driscoll
0.5 to 5.0 wt.% Dy2O3 was in-situ reacted with Mg + B to form pinned MgB2. While Tc remained largely unchanged, Jc was strongly enhanced. The best sample (only 0.5 wt.% Dy2O3) had…