Nernst effect in CeCu 2 Si 2

We report on an ongoing multiprobe experiment on a very high puritiy CeCu2Si2 single crystal at ambient and high pressure. The Nernst signal, which has not been measured in this compound so far, exhibits quite uncommon features and seems to be coupled to the antiferromagnetic phase, rather than to the vortex motion within the superconducting mixed state.