Observation of thermoelectric effect in an SNS junction
Kartsovnik M. V., Ryazanov V. V., Shmidt V. V.
The appearance of a finite voltage across a Ta-Cu-Ta Josephson junction due to a heat flux through the junction has been observed; this is attributable to the non-steady-state Josephson effect, which is caused by the flow of a thermoelectric current. The initiation of thermoelectric currents comparable to Ic is caused by the low Vc value (~ 10"'3 V) of the junctions.