Abstract
A method is given for obtaining the Nernst-Ettingshausen dimensionless figure of merit, in a direct measurement, as the ratio of two voltages. A discussion of the method is given for experiments involving rectangular sample geometries and also for more general geometrical configurations. Both isotropic and anisotropic materials are considered. The method is based on measurements of the ratio of the adiabatic electrical resistance to the isothermal electrical resistance. The superposition of the voltage of the Peltier-Seebeck effect is avoided by arranging for the completion of the experiments in a length of time which is short compared to the Peltier-Seebeck time constant for the sample. The required equipment and circuitry are simple, being similar to a four-probe resistivity measurement circuit with the voltage being determined by use of an oscilloscope.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
