Abstract
Motivated by the observation of a giant Nernst effect in , the thermoelectric response of the related system was investigated using thermal and electric transport properties such as the Nernst and Seebeck effects, thermal conductivity, Hall effect, and electrical resistivity. Unlike , is neither superconducting nor exhibits a “hidden-order” state. Nevertheless a pronounced Nernst effect anomaly is found to coincide with the onset of the antiferromagnetic order in . Although the absolute values are substantially lower, its appearance and characteristics can favorably be compared to the giant Nernst effect in , indicating the common feature of a partial Fermi surface gap.
- Received 15 August 2008
DOI:https://doi.org/10.1103/PhysRevB.78.121103
©2008 American Physical Society