title: Diameter dependence of the transport properties of antimony telluride nanowires.
abstract: We report measurements of electronic, thermoelectric, and galvanomagnetic properties of individual single crystal antimony telluride (Sb(2)Te(3)) nanowires with diameters in the range of 20-100 nm. Temperature-dependent resistivity and thermoelectric power (TEP) measurements indicate hole dominant diffusive thermoelectric generation with an enhancement of the TEP for smaller diameter wires up to 110 microV/K at T = 300 K. We measure the magnetoresistance in magnetic fields both parallel and perpendicular to the nanowire [110] axis, where strong anisotropic positive magnetoresistance behavior was observed.
authors.affiliation: Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, USA.
authors.forename: Yuri M
authors.initials: YM
authors.lastname: Zuev
authors.forename: Jin Seok
authors.initials: JS
authors.lastname: Lee
authors.forename: Clément
authors.initials: C
authors.lastname: Galloy
authors.forename: Hongkun
authors.initials: H
authors.lastname: Park
authors.forename: Philip
authors.initials: P
authors.lastname: Kim