Quantum Systems and Nanomaterials Group
Welcome to the research outputs of the University of Exeter's Quantum Systems and Nanomaterials Group, part of the College of Engineering, Mathematics and Physical Sciences
Recent Submissions

Metastable electronelectron states in doublelayer graphene structures
(American Physical Society, 20150807)The prototypical exciton model of two interacting Dirac particles in graphene was analyzed in J. Sabio et al., Phys. Rev. B 81, 045428 (2010) and it was found that in one of the electronhole scattering channels the total ... 
A class of exactly solvable models for the Schrodinger equation
(Springer Verlag, 2013)We present a class of confining potentials which allow one to reduce the onedimensional Schroodinger equation to a named equation of mathematical physics, namely either Bessel's or Whittaker's differential equation. In ... 
Band gaps in jagged and straight graphene nanoribbons tunable by an external electric field
(IOP Publishing, 2015)Band gap control by an external field is useful in various optical, infrared and THz applications. However, widely tunable band gaps are still not practical due to a variety of reasons. Using the orthogonal tightbinding ... 
On a solution of the Schrödinger equation with a hyperbolic doublewell potential
(American Institute of Physics (AIP), 2013)We report a solution of the onedimensional Schrödinger equation with a hyperbolic doublewell confining potential via a transformation to the socalled confluent Heun equation. We discuss the requirements on the parameters ... 
Photoinduced doping and strain in exfoliated graphene
(American Institute of Physics, 2013)The modiﬁcation of single layer graphene due to intense, picoseconds nearinfrared laser pulses is investigated. We monitor the stable changes introduced to graphene upon photoexcitation using Raman spectroscopy. We ﬁnd ...