title: Large thermoelectric power factor enhancement observed in InAs nanowires.
abstract: We report the observation of a thermoelectric power factor in InAs nanowires that exceeds that predicted by a single-band bulk model by up to an order of magnitude at temperatures below about 20 K. We attribute this enhancement effect not to the long-predicted 1D subband effects but to quantum-dot-like states that form in electrostatically nonuniform nanowires as a result of interference between propagating states and 0D resonances.
authors.affiliation: Solid State Physics and Nanometer Structure Consortium (nmC@LU), Lund University , Box 118, S-22100 Lund, Sweden.
authors.forename: Phillip M
authors.initials: PM
authors.lastname: Wu
authors.forename: Johannes
authors.initials: J
authors.lastname: Gooth
authors.forename: Xanthippi
authors.initials: X
authors.lastname: Zianni
authors.forename: Sofia Fahlvik
authors.initials: SF
authors.lastname: Svensson
authors.forename: Jan Göran
authors.initials: JG
authors.lastname: Gluschke
authors.forename: Kimberly A
authors.initials: KA
authors.lastname: Dick
authors.forename: Claes
authors.initials: C
authors.lastname: Thelander
authors.forename: Kornelius
authors.initials: K
authors.lastname: Nielsch
authors.forename: Heiner
authors.initials: H
authors.lastname: Linke