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45 papers · 2 filters
Superconductivity in Single-Crystal YIn3
S. D. Johnson, J. R. Young, R. J. Zieve +1
We measure the superconducting transition of YIn by resistivity, susceptibility, and specific heat. Despite using high-quality single-crystal samples, the transitions detected…
Towards resolution of the Fermi surface in underdoped high-Tc superconductors
Suchitra E. Sebastian, Neil Harrison, Gilbert G. Lonzarich
We survey recent experimental results including quantum oscillations and complementary measurements probing the electronic structure of underdoped cuprates, and theoretical proposa…
Upper critical fields and two-band superconductivity in Sr1-xEux(Fe0.89Co0.11)2As2 (x=0.203 and 0.463)
Rongwei Hu, Eun Deok Mun, M. M. Altarawneh +4
The upper critical fields, Hc2 of single crystals of Sr1-xEux(Fe0.89Co0.11)2As2(x=0.203 and 0.463) were determined by radio frequency penetration depth measurements in pulsed magne…
Heat-Capacity Measurements of Energy-Gap Nodes of the Heavy-Fermion Superconductor CeIrIn5 Deep inside the Pressure-Dependent Dome Structure of its Superconducting Phase Diagram
Xin Lu, Hanoh Lee, T. Park +3
We use heat capacity measurements as a function of field rotation to identify the nodal gap structure of CeIrIn5 at pressures to 2.05 GPa, deep inside its superconducting dome. A f…
Correlation and disorder-enhanced nematic spin response in superconductors with weakly broken rotational symmetry
Brian M. Andersen, Siegfried Graser, P. J. Hirschfeld
Recent experimental and theoretical studies have highlighted the possible role of a electronic nematic liquid in underdoped cuprate superconductors. We calculate, within a model of…
Phase solitons in multi-band superconductors with and without time-reversal symmetry
Shi-Zeng Lin, Xiao Hu
The Josephson-like interband couplings in multi-band superconductivity exhibit degenerate energy minima, which support states with kinks in phase of superconductivity. When the int…