132 citations · 351 across the 7 of their papers we have counts for
9 papers · 1 filter
Anisotropic Phase Diagram and Superconducting Fluctuations in SmFeAsO0.85F0.15
U. Welp, C. Chaparro, A. E. Koshelev +5
We report on the specific heat determination of the anisotropic phase diagram of single crystals of optimally doped SmFeAsO1-xFx. In zero-field, the optimally doped compound displa…
Magnetoresistance Oscillations in Granular Superconducting Niobium Nitride Nanowires
U. Patel, Z. L. Xiao, A. Gurevich +5
We report on magnetoresistance oscillations in superconducting NbNx nanowires synthesized through ammonia gas annealing of NbSe3 precursor nanostructures. Even though the transvers…
Growth and Superconductivity of FeSex Crystals
U. Patel, J. Hua, S. H. Yu +7
Iron selenide (FeSex) crystals with lateral dimensions up to millimeters were grown via a vapor self-transport method. The crystals consist of the dominant alpha - phase with trace…
Anisotropic phase diagram and strong coupling effects in Ba1-xKxFe2As2
U. Welp, R. Xie, A. E. Koshelev +5
We present a thermodynamic study of the phase diagram of single-crystal Ba1-xKxFe2As2 using specific heat measurements. In zero-magnetic field a clear step in the heat capacity of…
Caloric Determination of the Upper Critical Fields and Anisotropy of NdFeAsO1-xFx Single Crystals
U. Welp, R. Xie, A. E. Koshelev +4
We present heat capacity measurements of the upper critical fields of single-crystal NdFeAsO1-xFx. In zero-magnetic field a clear step in the heat capacity is observed at Tc = 47K…
Resistance Anomaly in Disordered Superconducting Films
J. Hua, Z. L. Xiao, D. Rosenmann +4
We report on a resistance anomaly in disordered superconducting films containing arrays of irregularly distributed nanoscale holes. At high driving currents, peaks appear in the re…