title: Cu-doping induced ferromagnetism in ZnO nanowires.
abstract: Cu-doped and undoped ZnO nanowires have been successfully fabricated at 600 degrees C using a vapor transport approach. Comprehensive structural analyses on as-fabricated nanowires reveal highly crystalline ZnO nanowires with 0.5 at. % of substitutional Cu doping. Ferromagnetism has been observed in Cu-doped ZnO nanowires but not in undoped ones, which is probably associated with defects involving both Cu dopants and Zn interstitials.
authors.affiliation: Department of Mechanical Engineering, Center for Advanced Microelectronics Manufacturing, Binghamton University, State University of New York, P.O. Box 6000, Binghamton, New York 13902, USA. cxu@binghamton.edu
authors.forename: Congkang
authors.initials: C
authors.lastname: Xu
authors.forename: Kaikun
authors.initials: K
authors.lastname: Yang
authors.forename: Liwei
authors.initials: L
authors.lastname: Huang
authors.forename: Howard
authors.initials: H
authors.lastname: Wang