The Nernst effect in metals is sensitive to superconductivity and density-wave order. The large positive Nernst signal observed in hole-doped high-transition-temperature superconductors has been attributed to fluctuating superconductivity but Olivier Cyr-Choiniere and colleagues report that the Nernst signal can be caused by stripe order. In LSCO doped with Nd or Eu, the onset of stripe order causes the Nernst signal to go from small and negative to large and positive.
- Olivier Cyr-Choinière
- R. Daou
- Louis Taillefer