Thermoelectric permanent magnet has record power density comparable to that of commercial longitudinal thermoelectric modules

https://techxplore.com/news/2025-06-thermoelectric-permanent-magnet-power-density.html

"56.7 mW/cm2 transverse thermoelectric room temperature power density... can be utilized everywhere magnets used... complex module structure separating heat/ charge current circuits overcome using transverse thermoelectric effect: charge current generated in orthogonal direction to applied heat current... but, transverse thermoelectric materials' zT low compared to longitudinal ones, overcome achieving 2-orders magnitude higher zT at alternately stacked samarium-cobalt magnet/ bismuth-antimony-tellurium interface"