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  • Helium ion microscope generated nitrogen-vacancy centres in type Ib diamond 

    ZHANG, HONGZHOU; MCEVOY, NIALL; DONEGAN, JOHN; MCCLOSKEY, DAVID; DUESBERG, GEORG; CROSS, GRAHAM (2014)
    We report on position and density control of nitrogen-vacancy (NV) centres created in type Ib diamond using localised exposure from a helium ion microscope and subsequent annealing. Spatial control to <380 nm has been ...
  • Helium ion microscopy of graphene: Beam damage, image quality and edge contrast 

    COLEMAN, JONATHAN; ZHANG, HONGZHOU; DONEGAN, JOHN; DUESBERG, GEORG (2013)
    A study to analyse beam damage, image quality and edge contrast in the helium ion microscope (HIM) has been undertaken. The sample investigated was graphene. Raman spectroscopy was used to quantify the disorder that can ...