title: Synthesis of hcp-Co Nanodisks.
abstract: hcp Co disk-shaped nanocrystals were obtained by rapid decomposition of cobalt carbonyl in the presence of linear amines. Other surfactants, in addition to the amines, like phosphine oxides and oleic acid were used to improve size dispersion, shape control, and nanocrystal stability. Co disks are ferromagnetic in character and they spontaneously self-assemble into long ribbons. X-ray and electron diffraction, electron microscopy, and SQUID magnetometry have been employed to characterize this material.
authors.affiliation: Chemistry Department and Materials Science Department, University of California, Berkeley 94720, USA. vfpuntes@lbl.gov
authors.forename: Victor F
authors.initials: VF
authors.lastname: Puntes
authors.forename: Daniela
authors.initials: D
authors.lastname: Zanchet
authors.forename: Can K
authors.initials: CK
authors.lastname: Erdonmez
authors.forename: A Paul
authors.initials: AP
authors.lastname: Alivisatos
mesh_terms: D000588:Amines / Q000737:chemistry; D002248:Carbon Monoxide / Q000737:chemistry; D003035:Cobalt / Q000737:chemistry*; D008854:Microscopy, Electron; D036103:Nanotechnology / Q000379:methods*; D013501:Surface-Active Agents / Q000737:chemistry; D014961:X-Ray Diffraction
chemical_list: D000588:Amines; D013501:Surface-Active Agents; D003035:Cobalt; D002248:Carbon Monoxide