  Antiferromagnets with tunable phase transitions are promising for future
spintronics applications. We investigated spin-dependent transport properties
of FeRh thin films, which show a temperature driven
antiferromagnetic-to-ferromagnetic phase transition. Epitaxial FeRh films grown
on MgO (001) substrates exhibit a clear magnetic and electronic phase
transition. By performing anomalous Hall and anomalous Nernst effect
measurements over a wide range of temperatures, we demonstrate that the
thermally driven transition shows distinctly different transverse transport on
both side of the phase transition. Particularly, a sign change of both
anomalous Hall and Nernst signals is observed.
