Leonard Franklin Register

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Dedication To my parents and my husband Acknowledgements The completion of this work would never have been possible without the inspiration and support from a lot of people and I know for sure however sincere an effort I might make to acknowledge the contributions of everybody who helped me through this, it will always fall short of what actually they mean(More)
We demonstrate gate-tunable resonant tunneling and negative differential resistance in the interlayer current-voltage characteristics of rotationally aligned double bilayer graphene heterostructures separated by hexagonal boron nitride (hBN) dielectric. An analysis of the heterostructure band alignment using individual layer densities, along with(More)
To reduce Schottky-barrier-induced contact and access resistance, and the impact of charged impurity and phonon scattering on mobility in devices based on 2D transition metal dichalcogenides (TMDs), considerable effort has been put into exploring various doping techniques and dielectric engineering using high-κ oxides, respectively. The goal of this work is(More)
A numerical procedure based on the time-dependent Schrijdinger equation for the modeling of multidimensional mesoscopic devices is presented. The primary features of this numerical method are a tight-binding formulation of the quantum mechanical Hamiltonian, an alternating direction implicit generalization of the Crank-Nicholson method for solving the(More)
A simulation tool for modeling superfluid quantum transport in the proposed Bilayer Psuedo-spin Field Effect Transistor (BiSFET) and related systems is described and demonstrated. An interlayer Fock exchange interaction is incorporated into a π-orbital based atomistic tight-binding model of transport in two graphene layers separated by a tunnel(More)
To my wife, my parents and grandparents Acknowledgement First of all, I would like to thank my supervisors and my role models, Drs. Sanjay K. Banerjee and Al F. Tasch for their invaluable guidance and support throughout my four-year Ph.D. study. Many thanks to Drs. for taking their time to serve on my committee, and for their comments and help. Many thanks(More)