title: Chirality induced tilted-hill giant Nernst signal.
abstract: We reveal a novel source of a giant Nernst response exhibiting strong nonlinear temperature and magnetic field dependence, including the mysterious tilted-hill temperature profile observed in a pleiad of materials. The phenomenon results directly from the formation of a chiral ground state, e.g., a chiral d-density wave, which is compatible with the eventual observation of diamagnetism and is distinctly different from the usual quasiparticle and vortex Nernst mechanisms. Our picture provides a unified understanding of the anomalous thermoelectricity observed in materials as diverse as the hole-doped cuprates and heavy-fermion compounds like URu(2)Si(2).
authors.affiliation: Department of Physics, National Technical University of Athens, GR-15780 Athens, Greece. pkotetes@central.ntua.gr
authors.forename: P
authors.initials: P
authors.lastname: Kotetes
authors.forename: G
authors.initials: G
authors.lastname: Varelogiannis