4 papers
Improved Irreversibility Behaviour and Critical Current Density in MgB2-Diamond Nanocomposites
Y. Zhao, X. F. Rui, C. H. Cheng +5
MgB2-diamond nanocomposite superconductors have been synthesized by addition of nano-diamond powder. Microstructural analysis shows that the nanocomposite superconductor consists o…
Doping Effect of Nano-Diamond on Superconductivity and Flux Pinning in MgB2
C. H. Cheng, H. Zhang, Y. Zhao +6
Doping effect of diamond nanoparticles on the superconducting properties of MgB2 bulk material has been studied. It is found that the superconducting transition temperature Tc of M…
On the Doping and Temperature Dependence of the Mass Enhancement Observed in the Cuprate Bi2212
P. D. Johnson, T. Valla, A. Fedorov +9
High-resolution photoemission is used to study the electronic structure of the cuprate superconductor, Bi2212, as a function of hole doping and temperature. A kink observed in the…
Temperature Dependent Scattering Rates at the Fermi Surface of Optimally Doped Bi 2212
T. Valla, A. V. Fedorov, P. D. Johnson +3
For optimally doped Bi 2212, scattering rates in the normal state are found to have a linear temperature dependence over most of the Fermi surface. In the immediate vicinity of the…