  The anomalous Nernst effect (ANE) is one of the most intriguing
thermoelectric phenomena which has attracted growing interest both for its
underlying physics and potential applications. Typically, a large ANE response
is observed in magnets with pronounced magnetizations or nontrivial Berry
curvature. Here, we report a significant ANE signal in compensated
ferrimagnetic CoxGd1-x alloy films, which exhibit vanishingly small
magnetization. In particular, we found that the polarity of ANE signal is
dominated by the magnetization orientation of the transition metal Co
sublattices, rather than the net magnetization of CoxGd1-x films. This
observation is not expected from the conventional understanding of ANE but is
analogous to the anomalous Hall effect in compensated ferrimagnets. We
attribute the origin of ANE and its Co-dominant property to the Co-dominant
Berry curvature. Our work could trigger a more comprehensive understanding of
ANE and may be useful for building energy-harvesting devices by employing ANE
in compensated ferrimagnets.
