title: Investigation of superconductivity in electrochemically fabricated AuSn nanowires.
abstract: We have fabricated intermetallic AuSn nanowires by electrochemical deposition in porous polycarbonate membranes. By controlling the deposition parameters, nanowires of a single intermetallic phase, namely AuSn, can be fabricated. AuSn nanowires are found to be crystalline and fairly resistant to oxidation. Electrical transport measurements on arrays of nanowires showed a superconducting transition temperature, T(c)∼1.5 K. In addition, four-probe measurements were made on individual freestanding nanowires with electrodes formed by a focused ion beam (FIB). Results from the two sets of measurements are found to be in close agreement.
authors.affiliation: Center for Nanoscale Science, Pennsylvania State University, University Park, PA 16802, USA. Department of Physics, Pennsylvania State University, University Park, PA 16802, USA.
authors.forename: Nitesh
authors.initials: N
authors.lastname: Kumar
authors.forename: M L
authors.initials: ML
authors.lastname: Tian
authors.forename: J G
authors.initials: JG
authors.lastname: Wang
authors.forename: W
authors.initials: W
authors.lastname: Watts
authors.forename: J
authors.initials: J
authors.lastname: Kindt
authors.forename: T E
authors.initials: TE
authors.lastname: Mallouk
authors.forename: M H W
authors.initials: MH
authors.lastname: Chan