Experimental formation of a fractional vortex in a superconducting bi-layer Article Swipe

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superconductivity squid vortex condensed matter physics scanning squid microscopy magnetic flux niobium physics soliton type-ii superconductor flux pinning flux (metallurgy) layer (electronics) josephson effect phase (matter) materials science magnetic field high-temperature superconductivity magnetometer quantum mechanics nanotechnology nonlinear system gradiometer biology metallurgy thermodynamics ecology

Y. Tanaka , Hirotake Yamamori , Takashi Yanagisawa , Taichiro Nishio , Shunichi Arisawa ·

YOU? · · 2018 · Open Access · · DOI: https://doi.org/10.1016/j.physc.2018.02.001 · OA: W2791494045

We report the experimental formation of a fractional vortex generated by using a thin superconducting bi-layer in the form of a niobium bi-layer, observed as a magnetic flux distribution image taken by a scanning superconducting quantum interference device (SQUID) microscope. Thus, we demonstrated that multi-component superconductivity can be realized by an s-wave conventional superconductor, because, in these superconductors, the magnetic flux is no longer quantized as it is destroyed by the existence of an inter-component phase soliton (i-soliton).

Experimental formation of a fractional vortex in a superconducting bi-layer Article Swipe

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