Recent Advances in Machine Learning‐Assisted Multiscale Design of Energy Materials

B Mortazavi - Advanced Energy Materials, 2024 - Wiley Online Library
This review highlights recent advances in machine learning (ML)‐assisted design of energy
materials. Initially, ML algorithms were successfully applied to screen materials databases …

Overdamped Phonon Diffusion and Nontrivial Electronic Structure Leading to a High Thermoelectric Figure of Merit in KCu5Se3

F Li, X Liu, N Ma, YC Yang, JP Yin… - Journal of the …, 2023 - ACS Publications
Thermoelectric copper selenides are highly attractive owing to not only their constituent
nontoxic, abundant elements but also their ultralow liquid-like lattice thermal conductivity …

Thermal conductivity of glasses: First-principles theory and applications

M Simoncelli, F Mauri, N Marzari - npj Computational Materials, 2023 - nature.com
Predicting the thermal conductivity of glasses from first principles has hitherto been a very
complex problem. The established Allen-Feldman and Green-Kubo approaches employ …

Origin of Intrinsically Low Lattice Thermal Conductivity in Solids

Y Wu, A Huang, L Ji, J Ji, Y Ding… - The Journal of Physical …, 2024 - ACS Publications
Reducing lattice thermal conductivity through external modulation techniques such as defect
engineering may potentially interfere with electronic transport. Materials with intrinsically low …

Unravelling ultralow thermal conductivity in perovskite Cs2AgBiBr6: dominant wave-like phonon tunnelling and strong anharmonicity

J Zheng, C Lin, C Lin, G Hautier, R Guo… - Npj Computational …, 2024 - nature.com
Understanding the lattice dynamics and heat transport physics in the lead-free halide double
perovskites remains an outstanding challenge due to their lattice dynamical instability and …

Unlocking phonon properties of a large and diverse set of cubic crystals by indirect bottom-up machine learning approach

A Rodriguez, C Lin, C Shen, K Yuan… - Communications …, 2023 - nature.com
Although first principles based anharmonic lattice dynamics is one of the most common
methods to obtain phonon properties, such method is impractical for high-throughput search …

Glass-like Transport Dominates Ultralow Lattice Thermal Conductivity in Modular Crystalline Bi4O4SeCl2

Z Tong, A Pecchia, CY Yam, T Dumitrica… - Nano …, 2023 - ACS Publications
Crystalline Bi4O4SeCl2 exhibits record-low 0.1 W/mK lattice thermal conductivity (κ L), but
the underlying transport mechanism is not yet understood. Using a theoretical framework …

Reduced anharmonic phonon scattering cross-section slows the decrease of thermal conductivity with temperature

X Yang, J Tiwari, T Feng - Materials Today Physics, 2022 - Elsevier
Without anharmonic phonon scattering, crystals could have infinite or “super” intrinsic bulk
thermal conductivity. Anharmonic phonon scattering rates usually increase with temperature …

Many-body Green's function approach to lattice thermal transport

G Caldarelli, M Simoncelli, N Marzari, F Mauri… - Physical Review B, 2022 - APS
Recent progress in understanding thermal transport in complex crystals has highlighted the
prominent role of heat conduction mediated by interband tunneling processes, which …

A unified understanding of minimum lattice thermal conductivity

Y Xia, D Gaines, J He, K Pal, Z Li… - Proceedings of the …, 2023 - National Acad Sciences
We propose a first-principles model of minimum lattice thermal conductivity (κ L min) based
on a unified theoretical treatment of thermal transport in crystals and glasses. We apply this …