338 citations · 1.3k across the 13 of their papers we have counts for
14 papers
Quasi-ballistic thermal transport across MoS thin films
Aditya Sood, Feng Xiong, Shunda Chen +7
Layered two-dimensional (2D) materials have highly anisotropic thermal properties between the in-plane and cross-plane directions. In general, it is thought that cross-plane therma…
An electrochemical thermal transistor
Aditya Sood, Feng Xiong, Shunda Chen +9
The ability to actively regulate heat flow at the nanoscale could be a game changer for applications in thermal management and energy harvesting. Such a breakthrough could also ena…
Thermal Transport Across Graphene Step Junctions
Miguel Munoz Rojo, Zuanyi Li, Charles Sievers +8
Step junctions are often present in layered materials, i.e. where single-layer regions meet multi-layer regions, yet their effect on thermal transport is not understood to date. He…
Temperature Dependent Thermal Boundary Conductance of Monolayer MoS by Raman Thermometry
Eilam Yalon, Özgür Burak Aslan, Kirby K. H. Smithe +9
The electrical and thermal behavior of nanoscale devices based on two-dimensional (2D) materials is often limited by their contacts and interfaces. Here we report the temperature-d…
Spatially Resolved Thermometry of Resistive Memory Devices
Eilam Yalon, Sanchit Deshmukh, Miguel Muñoz Rojo +4
The operation of resistive and phase-change memory (RRAM and PCM) is controlled by highly localized self-heating effects, yet detailed studies of their temperature are rare due to…
Energy Dissipation in Monolayer MoS Electronics
Eilam Yalon, Connor J. McClellan, Kirby K. H. Smithe +9
The advancement of nanoscale electronics has been limited by energy dissipation challenges for over a decade. Such limitations could be particularly severe for two-dimensional (2D)…
SANTA: Self-Aligned Nanotrench Ablation via Joule Heating for Probing Sub-20 nm Devices
Feng Xiong, Sanchit Deshmukh, Sungduk Hong +4
Manipulating materials at the nanometer scale is challenging, particularly if alignment with nanoscale electrodes is desired. Here we describe a lithography-free, self-aligned nano…
Nanoscale Phase Change Memory with Graphene Ribbon Electrodes
Ashkan Behnam, Feng Xiong, Andrea Cappelli +9
Phase change memory (PCM) devices are known to reduce in power consumption as the bit volume and contact area of their electrodes are scaled down. Here, we demonstrate two types of…
Hysteresis-Free Nanosecond Pulsed Electrical Characterization of Top-Gated Graphene Transistors
Enrique A. Carrion, Andrey Y. Serov, Sharnali Islam +6
We measure top-gated graphene field effect transistors (GFETs) with nanosecond-range pulsed gate and drain voltages. Due to high-k dielectric or graphene imperfections, the drain c…
Direct observation of nanometer-scale Joule and Peltier effects in phase change memory devices
Kyle L. Grosse, Feng Xiong, Sungduk Hong +2
We measure power dissipation in phase change memory (PCM) devices by scanning Joule ex-pansion microscopy (SJEM) with ~50 nm spatial and 0.2 K temperature resolution. The temperatu…
Ballistic to diffusive crossover of heat flow in graphene ribbons
Myung-Ho Bae, Zuanyi Li, Zlatan Aksamija +5
Heat flow in nanomaterials is an important area of study, with both fundamental and technological implications. However, little is known about heat flow in two-dimensional (2D) dev…
Effects of Tip-Nanotube Interactions on Atomic Force Microscopy Imaging of Carbon Nanotubes
Rouholla Alizadegan, Albert D. Liao, Feng Xiong +2
We examine the effect of van der Waals (vdW) interactions between atomic force microscope (AFM) tips and individual carbon nanotubes (CNTs) supported on SiO2. Molecular dynamics (M…
Thermal Dissipation and Variability in Electrical Breakdown of Carbon Nanotube Devices
Albert Liao, Rouholla Alizadegan, Zhun-Yong Ong +3
We study high-field electrical breakdown and heat dissipation from carbon nanotube (CNT) devices on SiO2 substrates. The thermal "footprint" of a CNT caused by van der Waals intera…
Inducing Chalcogenide Phase Change with Ultra-Narrow Carbon Nanotube Heaters
Feng Xiong, Albert Liao, Eric Pop
Carbon nanotube (CNT) heaters with sub-5 nm diameter induce highly localized phase change in Ge2Sb2Te5 (GST) chalcogenide. A significant reduction in resistance of test structures…