Condensed Matter Seminar: "Hot superconductors and cold insulators"

Tuesday, April 17, 2018 - 11:30am

Speaker(s): 
Dan Shahar (Weizmann Institute of Science)

The study of the magnetic-field driven superconductor-insulator transition in thin superconducting films at low temperatures reveals an unusual insulator whose conductivity seems to approach zero at a finite temperature, while its current-voltage characteristics are bistable, indicating that the electrons decouple from the phonon system. In parallel, the superconducting state at lower magnetic fields exhibits a broad range where metallic behavior is seen down to the lowest temperatures.

Physics 298

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