Peltier effect induced correction to ohmic resistance

The crucial point of the present paper is that the Peltier effect which is linear in current influences ohmic measurements and results in a correction to the resistance measured. Under current carrying conditions, one of the sample contacts is heated and the other is cooled because of the Peltier effect. The temperature gradient established is proportional to the current. The Thomson heat is then proportional to the square of the current and can be neglected. Finally, the voltage swing across the circuit includes the thermoelectromotive force induced by the Peltier effect, which is linear in current. Accordingly, there exists a thermal correction to the ohmic resistance of the sample. The correction should be in comparison with ohmic resistance of the conductor. Above some critical frequency, dependent on thermal inertial effects, the correction disappears.