Fig. 1: Illustration of thermoelectric devices and band dispersion.
From: Giant anomalous Nernst signal in the antiferromagnet YbMnBi2
a,b, Schematics of thermoelectric devices based on the Seebeck effect (a) and Nernst effect (b). The Nernst device needs only one material and eliminates the complex electrical connections required in the Seebeck device, especially at the hot side. B, magnetic field; E, electrical field; ∇T, temperature gradient. c, Schematics of the band structure near EF for canted YbMnBi2 (left) and general ferromagnets (right). YbMnBi2 shows a much sharper band dispersion and a higher mobility than general ferromagnets.
