title: Nanocrystal-powered nanomotor.
abstract: We have constructed and operated a nanoscale linear motor powered by a single metal nanocrystal ram sandwiched between mechanical lever arms. Low-level electrical voltages applied to the carbon nanotube lever arms cause the nanocrystal to grow or shrink in a controlled manner. The length of the ram is adjustable from 0 to more than 150 nm, with extension speeds exceeding 1900 nm/s. The thermodynamic principles governing motor operation resemble those driving frost heave, a natural solid-state linear motor.
authors.affiliation: Department of Physics, Center of Integrated Nanomechanical Systems, University of California, Berkeley, California 94720, USA.
authors.forename: B C
authors.initials: BC
authors.lastname: Regan
authors.forename: S
authors.initials: S
authors.lastname: Aloni
authors.forename: K
authors.initials: K
authors.lastname: Jensen
authors.forename: R O
authors.initials: RO
authors.lastname: Ritchie
authors.forename: A
authors.initials: A
authors.lastname: Zettl