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Magnetic field processing to enhance critical current densities of MgB2 superconductors
S. X. Dou, W. K. Yeoh, O. Shcherbakova +5
Magnetic field of up to 12 T was applied during the sintering process of pure MgB2 and carbon nanotube (CNT) doped MgB2 wires. We have demonstrated that magnetic field processing r…
Interaction between superconductor and ferromagnetic domains in iron sheath: peak effect in MgB2/Fe wires
J. Horvat, W. K. Yeoh, L. M. Miller
Interaction between the superconductor and ferromagnet in MgB2/Fe wires results in either a plateau or a peak effect in the field dependence of transport critical current, Ic(H). T…
Off-axis MgB2 films using an in situ annealing pulsed laser deposition method
Yue Zhao, Mihail Ionescu, Josip Horvat +1
Highly smooth and c-axis oriented superconducting MgB2 thin films were prepared by pulsed laser deposition (PLD) with off-axis geometry. The films were deposited on Al2O3-C substra…
Effect of Nano Scale Fe Doping on Superconducting Properties of MgB2
S. X. Dou, S. Soltanian, Y. Zhao +3
Iron is an important sheath material for fabrication of MgB2 wires. However, the effect of Fe doping on the superconducting properties of MgB2 remains controversial. In this work,…
Effect of carbon nanotube doping on critical current density of MgB2 superconductor
S. X. Dou, W. K. Yeoh, J. Horvat +1
The effect of doping MgB2 with carbon nanotubes on transition temperature, lattice parameters, critical current density and flux pinning was studied for MgB2-xCx with x = 0, 0.05,…
Interaction of superconductor with magnetic sheath as a way for improvement of critical current in MgB2/Fe superconductor
J. Horvat
Magnesium diboride superconducting wires give the largest critical current density (Jc) when produced with iron sheath. Because iron is ferromagnetic, it is expected to improve the…