Machine-learning-optimized aperiodic superlattice minimizes coherent phonon heat conduction

R Hu, S Iwamoto, L Feng, S Ju, S Hu, M Ohnishi… - Physical Review X, 2020 - APS
Lattice heat conduction can be modulated via nanostructure interfaces. Although advances
have been made by viewing phonons as particles, the controllability should be enhanced by …

Tuning phonon transport spectrum for better thermoelectric materials

T Hori, J Shiomi - Science and technology of advanced materials, 2019 - Taylor & Francis
The figure of merit of thermoelectric materials can be increased by suppressing the lattice
thermal conductivity without degrading electrical properties. Phonons are the carriers for …

Thermal phonon engineering by tailored nanostructures

M Nomura, J Shiomi, T Shiga… - Japanese Journal of …, 2018 - iopscience.iop.org
Phonon engineering is expected to contribute to further development of various fields and
technologies such as electronics, photonics, thermal engineering, and materials science …

Unexpected thermal conductivity enhancement in pillared graphene nanoribbon with isotopic resonance

D Ma, X Wan, N Yang - Physical Review B, 2018 - APS
Wave effects of phonons play an important role in modulating thermal transport in
nanostructures. In this paper, we calculated the thermal conductivity of a species of …

Quantifying phonon particle and wave transport in silicon nanophononic metamaterial with cross junction

D Ma, A Arora, S Deng, G Xie, J Shiomi, N Yang - Materials Today Physics, 2019 - Elsevier
Understanding phonon transport mechanisms in nanostructures is of great importance for
delicately tailoring thermal properties. Combining phonon particle and wave effects through …

Phonon-polaritons in lead halide perovskite film hybridized with THz metamaterials

HS Kim, NY Ha, JY Park, S Lee, DS Kim, YH Ahn - Nano Letters, 2020 - ACS Publications
In this work, we demonstrated a phonon-polariton in the terahertz (THz) frequency range,
generated in a crystallized lead halide perovskite film coated on metamaterials. When the …

Significantly enhanced thermoelectric performance of molecular junctions by the twist angle dependent phonon interference effect

YJ Zeng, D Wu, XH Cao, YX Feng, LM Tang… - Journal of Materials …, 2020 - pubs.rsc.org
Suppressing phonon thermal conductance is one of the most important ways to improve the
thermoelectric efficiency. In the present work, we theoretically analyze the phonon transport …

Nonequilibrium Green's function method for phonon heat transport in quantum system

YJ Zeng, ZK Ding, H Pan, YX Feng… - Journal of Physics …, 2022 - iopscience.iop.org
Phonon heat transport property in quantum devices is of great interesting since it presents
significant quantum behaviors. In the past few decades, great efforts have been devoted to …

Phonon transport in the nano-system of Si and SiGe films with Ge nanodots and approach to ultralow thermal conductivity

T Taniguchi, T Terada, Y Komatsubara, T Ishibe… - Nanoscale, 2021 - pubs.rsc.org
Phonon transport in the nano-system has been studied using well-designed nanostructured
materials to observe and control the interesting phonon behaviors like ballistic phonon …

Understanding the mechanism of diffuse phonon scattering at disordered surfaces by atomistic wave-packet investigation

C Shao, Q Rong, N Li, H Bao - Physical Review B, 2018 - APS
Phonon surface scattering is of great importance for understanding thermal transport in
nanostructured materials and has been widely utilized to tailor thermal properties. However …