Nonlinear Meissner Interferometry
ORAL
Abstract
We propose a nonlinear Meissner interferometer in which a high-Q superconducting resonator is excited by the third harmonic generated by the nonlinear Meissner response in a superconducting film. This effect can be used to greatly increase the field amplitude of the nonlinear electromagnetic response and generate a giant third harmonic at GHz frequencies. We calculated the resonance line of the third harmonics B3ω(T) and showed how the measurements of the temperature dependence of B3ω(T) can reveal the fundamental mechanisms of the nonlinear Meissner effect and superconducting gap symmetry in conventional and unconventional superconductors.
*The work of AG was supported by DOE under Grant DE-SC0010081-020. The work of JS was supported by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Superconducting Quantum Materials and Systems Center (SQMS) under contract number DE-AC02-07CH11359.
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Presenters
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Alexander V Gurevich
- Old Dominion University