Ruofan Chen, Tianxing Ma, Li-Gang Wang, Hai-Qing Lin
In a pristine monolayer graphene subjected to a constant electric field along the layer, the Bloch oscillation of an electron is studied in a simple and efficient way. By using the electronic dispersion relation, the dynamic formula of semi-classical velocity is derived analytically, and then many aspects of conventional Bloch oscillation, such as the frequency, amplitude, as well as the direction of the oscillation, are investigated. It is interesting to find that the electric field should affect the component of motion which is non-collinear with electric field, making the particle accelerated or oscillated in another component.
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http://arxiv.org/abs/1301.3221
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