title: Giant Nernst effect in CeCoIn5.
abstract: We present a study of Nernst and Seebeck coefficients of the heavy-fermion superconductor CeCoIn5. Below 18 K, concomitant with a field-dependent Seebeck coefficient, a large sublinear Nernst signal emerges with a magnitude drastically exceeding what is expected for a multiband Fermi-liquid metal. In the mixed state, in contrast with all other superconductors studied before, this signal overwhelms the one associated with the motion of superconducting vortices. The results point to a hitherto unknown source of transverse thermoelectricity in strongly interacting electrons.
authors.affiliation: Laboratoire de Physique Quantique (CNRS), ESPCI, 10 Rue de Vauquelin, 75231 Paris, France.
authors.forename: R
authors.initials: R
authors.lastname: Bel
authors.forename: K
authors.initials: K
authors.lastname: Behnia
authors.forename: Y
authors.initials: Y
authors.lastname: Nakajima
authors.forename: K
authors.initials: K
authors.lastname: Izawa
authors.forename: Y
authors.initials: Y
authors.lastname: Matsuda
authors.forename: H
authors.initials: H
authors.lastname: Shishido
authors.forename: R
authors.initials: R
authors.lastname: Settai
authors.forename: Y
authors.initials: Y
authors.lastname: Onuki