Browsing by Keyword "Graphene"
Now showing items 1-8 of 8
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Detecting Single Photons with Graphene-Based Josephson Junctions
(2020-11-23)In this work I present theory, modeling, and experimentation demonstrating that the graphene-based Josephson junction (GJJ) is a capable system for the detection of single photons across the electromagnetic spectrum, from ... -
Development of high frequency and wide bandwidth Johnson noise thermometry
(AIP Publishing, 2015)We develop a high frequency, wide bandwidth radiometer operating at room temperature, which augments the traditional technique of Johnson noise thermometry for nanoscale thermal transport studies. Employing low noise ... -
Direct Observation of a Long-Lived Single-Atom Catalyst Chiseling Atomic Structures in Graphene
(American Chemical Society (ACS), 2014)Fabricating stable functional devices at the atomic scale is an ultimate goal of nanotechnology. In biological processes, such high-precision operations are accomplished by enzymes. A counterpart molecular catalyst that ... -
Hot Carriers in Graphene
(2014-10-22)When energy relaxation between electrons and the lattice is slow, an elevated electronic temperature different from that of the lattice persists. In this regime, hot charge carriers control the energy transport in a material. ... -
Hydrodynamics and Viscous Flow in Graphene Measured with Johnson Noise Thermometry
(2024-03-12)In this dissertation, we investigate thermal transport phenomena in 2-dimensional monolayer and bilayer graphene, both of which are candidates for strongly interacting, correlated electronic systems. The interactions between ... -
Imaging Cyclotron Orbits of Electrons in Graphene
(American Chemical Society (ACS), 2016)Electrons in graphene can travel for several microns without scattering at low temperatures, and their motion becomes ballistic, following classical trajectories. When a magnetic field B is applied perpendicular to the ... -
Local electronic and optical phenomena in two-dimensional materials
(2022-01-10)Two-dimensional (2D) materials, consisting of a single layer of atoms, have proven to be a tremendously valuable platform for studying novel physical phenomena. Besides representing the ultimate thickness limit, these ... -
Multiscale Models for Incommensurate Layered Two-dimensional Materials
(2022-06-06)Manipulating the twist angle or lattice mismatch in stacks of multilayered two-dimensional (2D) materials, referred to as van der Waals (vdW) heterostructures, introduces a long-wavelength moiré potential that fundamentally ...