title: Extreme thermopower anisotropy and interchain transport in the quasi-one-dimensional metal Li0.9Mo6O17.
abstract: Thermopower and electrical resistivity measurements transverse to the conducting chains of the quasi-one-dimensional metal Li0.9Mo6O17 are reported in the temperature range 5≤T≤500  K. For T≥400  K the interchain transport is determined by thermal excitation of charge carriers from a valence band ∼0.14  eV below the Fermi level, giving rise to a large, p-type thermopower that coincides with a small, n-type thermopower along the chains. This dichotomy-semiconductorlike in one direction and metallic in a mutually perpendicular direction-gives rise to substantial transverse thermoelectric effects and a transverse thermoelectric figure of merit among the largest known for a single compound.
authors.affiliation: Department of Physics, University of Miami, Coral Gables, Florida 33124, USA.
authors.forename: J L
authors.initials: JL
authors.lastname: Cohn
authors.affiliation: Department of Physics, University of Miami, Coral Gables, Florida 33124, USA.
authors.forename: S
authors.initials: S
authors.lastname: Moshfeghyeganeh
authors.affiliation: Escola de Engenharia de Lorena - USP, P. O. Box 116, Lorena-SP, 12602-810, Brazil.
authors.forename: C A M
authors.initials: CA
authors.lastname: dos Santos
authors.affiliation: Department of Physics, Montana State University, Bozeman, Montana 59717, USA.
authors.forename: J J
authors.initials: JJ
authors.lastname: Neumeier