Thermoelectric Effects in Superconductor-Ferromagnet Hybrids

Superconductor-ferromagnet (S/F) hybrids host a profusion of fascinating phenomena rooted in the conflicting spin orders of the two component systems. Most experimental studies of these systems have focused on charge and spin transport measurements. Thermal properties remain largely experimentally unexplored. This is not for lack of exciting predictions, including a dramatic increase in the thermoelectric figure of merit of S/F hybrids compared to either system alone. This talk will focus on experimental design and measurements to determine the thermoelectric figure of merit in S/F hybrids. The effects that the dimensionality, type of superconductivity, and Andreev reflections have on thermal phenomena, and potential applications like thermoelectric cooling at sub-Kelvin temperatures will also be discussed.