title: Transport spectroscopy of an impurity spin in a carbon nanotube double quantum dot.
abstract: We make use of spin selection rules to investigate the electron spin system of a carbon nanotube double quantum dot. Measurements of the electron transport as a function of the magnetic field and energy detuning between the quantum dots reveal an intricate pattern of the spin state evolution. We demonstrate that the complete set of measurements can be understood by taking into account the interplay between spin-orbit interaction and a single impurity spin coupled to the double dot. The detection and tunability of this coupling are important for quantum manipulation in carbon nanotubes.
authors.affiliation: Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom.
authors.forename: S J
authors.initials: SJ
authors.lastname: Chorley
authors.forename: G
authors.initials: G
authors.lastname: Giavaras
authors.forename: J
authors.initials: J
authors.lastname: Wabnig
authors.forename: G A C
authors.initials: GA
authors.lastname: Jones
authors.forename: C G
authors.initials: CG
authors.lastname: Smith
authors.forename: G A D
authors.initials: GA
authors.lastname: Briggs
authors.forename: M R
authors.initials: MR
authors.lastname: Buitelaar