title: Nernst response of the Landau tubes in graphite across the quantum limit.
abstract: We report on a study of the Nernst effect in graphite extended up to 45 T. The Nernst response sharply peaks when a Landau tube is squeezed inside the thermally fuzzy Fermi surface and presents a temperature-independent fixed point when the tube flattens to a single ring. Beyond the quantum limit, the onset of the field-induced phase transition leads to a drastic drop in the Nernst response signaling the sudden vanishing of Landau tubes. The magnitude of this drop suggests the destruction of multiple Landau tubes possibly as a result of simultaneous nesting of the electron and hole pockets.
authors.affiliation: LPEM (UPMC-CNRS), Ecole Supérieure de Physique et de Chimie Industrielles, Paris, France.
authors.forename: Benoît
authors.initials: B
authors.lastname: Fauqué
authors.forename: Zengwei
authors.initials: Z
authors.lastname: Zhu
authors.forename: Tim
authors.initials: T
authors.lastname: Murphy
authors.forename: Kamran
authors.initials: K
authors.lastname: Behnia