351 citations · 893 across the 15 of their papers we have counts for
13 papers · 1 filter
Pair-breaking and superconducting state recovery dynamics in MgB2
J. Demsar, R. D. Averitt, A. J. Taylor +5
We present studies of the photoexcited quasiparticle dynamics in MgB2 where, using femtosecond optical techniques, Cooper pair breaking dynamics (PBD) have been temporally resolved…
Pinning Action of Correlated Disorder against Equilibrium Properties of HgBaCaCuO: a Delicate Balance
J. R. Thompson, J. G. Ossandon, L. Krusin-Elbaum +5
We report significant alteration of the equilibrium properties of the superconductor HgBaCaCuO when correlated disorder in the form of randomly oriented columnar tr…
Self-organized current transport through low angle grain boundaries in YBaCuO thin films, studied magnetometrically
J. R. Thompson, H. J. Kim, C. Cantoni +3
The critical current density flowing across low angle grain boundaries in YBaCuO thin films has been studied magnetometrically. Films (200 nm thickness) were deposi…
Effects of unreacted Mg impurities on the transport properties of MgB2
C. U. Jung, Heon-Jung Kim, Min-Seok Park +9
We synthesized polycrystalline MgB2 from a stoichiometric mixture of Mg and the 11 B isotope under different conditions. All the samples showed bulk superconductivity with Tc = 38~…
Current density and reversible magnetization of HgBa(2)Ca(2)Cu(3)O(x) superconductors containing randomly oriented columnar defects
J. R. Thompson, J. G. Ossandon, L. Krusin-Elbaum +5
Bulk polycrystalline HgBa(2)Ca(2)Cu(3)O(x) materials were irradiated with 0.8 GeV protons to form randomly oriented columnar defects, by induced fission of Hg-nuclei. Proton fluenc…
Two-Band Superconductivity in MgB2
M. Iavarone, G. Karapetrov, A. E. Koshelev +3
The study of the anisotropic superconductor MgB2 using a combination of scanning tunneling microscopy and spectroscopy reveals two distinct energy gaps at Delta1=2.3 meV and Delta2…