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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