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Fluctuations, dissipation, and nonuniversal superfluid jumps in two-dimensional superconductors
R. W. Crane, N. P. Armitage, A. Johansson +3
We report a comprehensive study of the complex AC conductivity of thin effectively 2D amorphous superconducting InO_x films at zero applied field. Below a temperature scale T_c0 wh…
Survival of superconducting correlations across the 2D superconductor-insulator transition: A finite frequency study
R. W. Crane, N. P. Armitage, A. Johansson +3
The complex ac conductivity of thin highly disordered InOx films was studied as a function of magnetic field through the nominal two-dimensional superconductor-insulator transition…
Angular dependence of the magnetic-field driven superconductor-insulator transition in thin films of amorphous indium-oxide
A. Johansson, N. Stander, E. Peled +2
A significant anisotropy of the magnetic-field driven superconductor-insulator transition is observed in thin films of amorphous indium-oxide. The anisotropy is largest for more di…
Two-Dimensional Electron Gas in InGaAs/InAlAs Quantum Wells
E. Diez, Y. P. Chen, S. Avesque +6
We designed and performed low temperature DC transport characterization studies on two-dimensional electron gases confined in lattice-matched InGaAs/InAl…