246 citations · 591 across the 12 of their papers we have counts for
9 papers · 1 filter
Ge thin-films with tantalum diffusion-barriers for use in Nb-based superconductor technology
C. Kopas, S. Zhang, J. Gonzales +4
Germanium thin films are an excellent candidate for use as a low-loss dielectric in superconducting microwave resonators, a low-loss inter-layer metal wiring dielectric, and passiv…
Effect of -particle irradiation on a NdFeAs(O,F) thin film
C. Tarantini, K. Iida, N. Sumiya +6
The effect of -particle irradiation on a NdFeAs(O,F) thin film has been investigated to determine how the introduction of defects affects basic superconducting properties, inclu…
Effect of stoichiometry on oxygen incorporation in MgB2 thin films
R K Singh, Y Shen, R Gandikota +2
The amount of oxygen incorporated into MgB2 thin films upon exposure to atmospheric gasses is found to depend strongly on the material's stoichiometry. Rutherford backscattering sp…
Effect of Rb and Cs-doping on superconducting properties of MgB2 thin films
R K Singh, Y Shen, R Gandikota +4
Our Rutherford backscattering spectrometry (RBS) study has found that concentrations up to 7 atomic percent of Rb and Cs can be introduced to a depth of ~700 A in MgB2 thin films b…
MgB2 tunnel junctions with native or thermal oxide barriers
R. K. Singh, R. Gandikota, J. Kim +2
MgB2 tunnel junctions (MgB2/barrier/MgB2) were fabricated using a native oxide grown on the bottom MgB2 film as the tunnel barrier. Such barriers therefore survive the deposition o…
Effect of damage by 2-MeV He ions and annealing on Hc2 in MgB2 thin films
R. Gandikota, R. K. Singh, J. Kim +9
The effect of damage induced by 2-MeV alpha particles, followed by annealing, on the critical temperature (Tc), resistivity, and upper critical field (Hc2), of three MgB2 films mad…
Effect of damage by 2-MeV He ions on the normal and superconducting properties of magnesium diboride
R. Gandikota, R. K. Singh, J. Kim +8
We have studied the effect of damage induced by 2-MeV alpha particles on the critical temperature, Tc, and resistivity of MgB2 thin films. This technique allows defects to be contr…
High-field superconductivity in alloyed MgB2 thin films
V. Braccini, A. Gurevich, J. E. Giencke +24
We investigated the effect of alloying on the upper critical field in 12 films, in which disorder was introduced by growth, carbon doping or He-ion irradiation, fi…
Thermochemistry of MgB2 Thin Film Synthesis
Jihoon Kim, Rakesh K. Singh, Nathan Newman +1
We have investigated the thermodynamic and kinetic barriers involved in the synthesis of MgB2 films. This work refines our initial conjectures predicting optimal MgB2 thin film gro…