Figure 1. Two Types of Fluctuations in Superconductors and their Detection by Thermoelectric Effect Measurement (IMAGE)

_Tokyo Institute of Technology

Figure 1. Two Types of Fluctuations in Superconductors and their Detection by Thermoelectric Effect Measurement

Caption

(Left) In a magnetic field of moderate magnitude, magnetic flux lines penetrate in the form of defects accompanied by vortices of superconducting currents. (Center) Conceptual diagram of the “superconducting fluctuation” state, a precursor to superconductivity. Time-varying, spatially non-uniform, bubble-like superconducting regions are formed. (Right) Schematic diagram of thermoelectric effect measurement. Magnetic flux line motion and superconducting fluctuations generate a voltage perpendicular to the heat flow (temperature gradient).

Credit

Koichiro Ienaga

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