Giant Nernst effect in the incommensurate charge density wave state of P4W12O44

Abstract : We report the study of Nernst effect in quasi-low-dimensional tungsten bronze P4W12O44 showing a sequence of Peierls instabilities. We demonstrate that both condensation of the electronic carriers in the charge density wave state and the existence of high-mobility electrons and holes originating from the small pockets remaining in the incompletely nested Fermi surface give rise to a Nernst effect of a magnitude similar to that observed in heavy fermion compounds.
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Kamil K. Kolincio, Ramzy Daou, Olivier Perez, Laurent Guérin, Pierre Fertey, et al.. Giant Nernst effect in the incommensurate charge density wave state of P4W12O44. Physical Review B : Condensed matter and materials physics, American Physical Society, 2016, 94 (24), pp.241118(R). ⟨10.1103/PhysRevB.94.241118⟩. ⟨hal-01481021⟩

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