title: Boron nitride nanotubes.
abstract: The successful synthesis of pure boron nitride (BN) nanotubes is reported here. Multi-walled tubes with inner diameters on the order of 1 to 3 nanometers and with lengths up to 200 nanometers were produced in a carbon-free plasma discharge between a BN-packed tungsten rod and a cooled copper electrode. Electron energy-loss spectroscopy on individual tubes yielded B:N ratios of approximately 1, which is consistent with theoretical predictions of stable BN tube structures.
authors.forename: N G
authors.initials: NG
authors.lastname: Chopra
authors.forename: R J
authors.initials: RJ
authors.lastname: Luyken
authors.forename: K
authors.initials: K
authors.lastname: Cherrey
authors.forename: V H
authors.initials: VH
authors.lastname: Crespi
authors.forename: M L
authors.initials: ML
authors.lastname: Cohen
authors.forename: S G
authors.initials: SG
authors.lastname: Louie
authors.forename: A
authors.initials: A
authors.lastname: Zettl