|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Alloys and Compounds for Thermoelectric and Solar Cell Applications IX
||First-principles Calculation of Nernst Coefficient and Magneto-Seebeck
||Emad Rezaei, Md Sabbir Akhanda, Keivan Esfarjani, Mona Zebarjadi
|On-Site Speaker (Planned)
In the presence of a temperature gradient and an orthogonal magnetic field, a transverse thermomagnetic voltage, the so-called Nernst voltage develops. Semimetals are known to be good candidates for thermomagnetic transport due to their bipolar nature of transport and their unique topological properties. Herein, we study the Nernst signal and the magneto-Seebeck coefficient of several semimetals in weak magnetic fields using first-principles calculations as well as phenomenological models. Theoretical predictions are compared and their validity is tested by comparing the results with the experiment in a wide temperature range and for different carrier concentrations.