High-frequency oscillations in graphene resonant tunnelling heterostructures
Gaskell, J (2016) High-frequency oscillations in graphene resonant tunnelling heterostructures. PhD thesis, University of Nottingham.
In this thesis, the form of the current-voltage characteristics and the resulting current oscillations in graphene-hexagonal boron nitride heterostructures are explored by means of theoretical investigation and are supported by experimental observations. The conditions for resonant tunnelling and the effect of device and circuit parameters are examined through simulation of the charge dynamics using the Bardeen Transfer Hamiltonian method. Studies of the effect of induced moir\'e patterns between the crystallographically aligned graphene and the boron nitride lattices are also undertaken, with recommendations for future investigation.
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