Suppressed electronic contribution in thermal conductivity of Ge2Sb2Se4Te

K Aryana, Y Zhang, JA Tomko, MSB Hoque… - Nature …, 2021 - nature.com
Integrated nanophotonics is an emerging research direction that has attracted great interests
for technologies ranging from classical to quantum computing. One of the key-components …

Evaluating size effects on the thermal conductivity and electron-phonon scattering rates of copper thin films for experimental validation of Matthiessen's rule

MR Islam, P Karna, JA Tomko, ER Hoglund… - Nature …, 2024 - nature.com
As metallic nanostructures shrink towards the size of the electronic mean free path, thermal
conductivity decreases due to increased electronic scattering rates. Matthiessen's rule is …

Large Exchange Coupling Between Localized Spins and Topological Bands in MnBi2Te4

H Padmanabhan, VA Stoica, PK Kim… - Advanced …, 2022 - Wiley Online Library
Magnetism in topological materials creates phases exhibiting quantized transport
phenomena with potential technological applications. The emergence of such phases relies …

Excitation and relaxation of nonthermal electron energy distributions in metals with application to gold

DM Riffe, RB Wilson - Physical Review B, 2023 - APS
A semiempirical theory for the excitation and subsequent relaxation of nonthermal electrons
is described. The theory, which is applicable to ultrafast-laser excited metals, is based on the …

Report on the Tenth US-Japan Joint Seminar on Nanoscale Transport Phenomena

R Chen, C Duan, T Hori, WL Hsu, Y Hu… - Nanoscale and …, 2024 - Taylor & Francis
ABSTRACT The tenth US–Japan Joint Seminar on Nanoscale Transport Phenomena was
held in San Diego, California, from July 16–19, 2023. The goals of the joint seminar series …

Deconvolution of Phonon–Phonon and Electron–Phonon Interactions from Phonon Line Width in Zr-Substituted BaTiO3

K Kumar, OV Rambadey… - The Journal of Physical …, 2023 - ACS Publications
Recently, one to one correlation between the electronic disorder, ie, Urbach energy (E u)
and phonon width (Γ), has been observed [J. Phys. Chem. C 2022 126, 13946, Phys. Rev. B …

Nonequilibrium electron–phonon coupling across the interfaces between Al nanofilm and GaN

J Chen, W Bao, Z Wang, K Xu, D Tang - Physical Chemistry Chemical …, 2024 - pubs.rsc.org
The metal Al is commonly attached to external circuits as the source and drain in GaN-based
field effect transistors, so profound comprehension of the energy transfer between electrons …

Fermi surface anisotropy in plasmonic metals increases the potential for efficient hot carrier extraction

S Kumar, C Multunas, R Sundararaman - Physical Review Materials, 2022 - APS
Realizing the potential of plasmonic hot carrier harvesting for energy conversion and
photodetection requires new materials that resolve the bottleneck of extracting carriers prior …

Ultrafast relaxation dynamics of excited carriers in metals: Simplifying the intertwined dependencies upon scattering strengths, phonon temperature, photon energy …

DM Riffe, RB Wilson - Physical Review B, 2024 - APS
Using the Boltzmann transport equation (BTE), we study the evolution of nonequilibrium
carrier distributions in simple (sp) metals, assumed to have been instantaneously excited by …

Increased thermal conductivity and decreased electron–phonon coupling factor of the aluminum scandium intermetallic phase (Al3Sc) compared to solid solutions

D Hirt, MR Islam, MSB Hoque, W Hutchins… - Applied Physics …, 2024 - pubs.aip.org
Aluminum scandium alloys and their intermetallic phases have arisen as potential
candidates for the next generation of electrical interconnects. In this work, we measure the in …