@article{Delaire2020,
title = {Controlling phonon lifetimes via sublattice disordering in AgBiSe2},
author = {J. L. Niedziela and D. Bansal and J. Ding and T. Lanigan-Atkins and Chen Li and A. F. May and H. Wang and J. Y. Y. Lin and D. L. Abernathy and G. Ehlers and A. Huq and D. Parshall and J. W. Lynn and O. Delaire},
url = {https://journals.aps.org/prmaterials/abstract/10.1103/PhysRevMaterials.4.105402},
doi = {10.1103/PhysRevMaterials.4.105402},
year = {2020},
date = {2020-08-04},
journal = {Phys. Rev. Materials},
volume = {4},
pages = {105402},
abstract = {Understanding and controlling microscopic heat transfer mechanisms in solids is critical to material design in numerous technological applications. Yet, the current understanding of thermal transport in semiconductors and insulators is limited by the difficulty in directly measuring individual phonon lifetimes and mean free paths, and studying their dependence on the microscopic state of the material. Here we report our measurements of microscopic phonon scattering rates in AgBiSe2, which exhibits a controllable, reversible change directly linked to microstructure evolution near a reversible structural phase transition, that directly impacts the thermal conductivity. We demonstrate a steplike doubling of phonon scattering rates resultant from the cation disordering at the structural transition. To rationalize the neutron scattering data, we leverage a stepwise approach to account for alterations to the thermal conductivity that are imparted by distinct scattering mechanisms. These results highlight the potential of tunable microstructures housed in a stable crystal matrix to provide a practical route to tailor phonon scattering to optimize thermal transport properties.},
keywords = {lattice dynamics, phonon, thermal transport},
pubstate = {published},
tppubtype = {article}
}

@article{delaire_heavy-impurity_2015,
title = {Heavy-impurity resonance, hybridization, and phonon spectral functions in Fe1−xMxSi (M=Ir, Os)},
author = {O Delaire and I I Al-Qasir and A F May and Chen W Li and B C Sales and J L Niedziela and J Ma and M Matsuda and D L Abernathy and T Berlijn},
url = {https://link.aps.org/doi/10.1103/PhysRevB.91.094307},
doi = {10.1103/PhysRevB.91.094307},
year = {2015},
date = {2015-03-01},
journal = {Physical Review B},
volume = {91},
number = {9},
pages = {784},
keywords = {anharmonicity, lattice dynamics, phonon},
pubstate = {published},
tppubtype = {article}
}

@article{li_anharmonicity_2014,
title = {Anharmonicity and atomic distribution of SnTe and PbTe thermoelectrics},
author = {Chen W Li and J Ma and H B Cao and A F May and D L Abernathy and G Ehlers and C Hoffmann and X Wang and T Hong and A Huq and O Gourdon and O Delaire},
url = {https://link.aps.org/doi/10.1103/PhysRevB.90.214303},
doi = {10.1103/PhysRevB.90.214303},
year = {2014},
date = {2014-01-01},
journal = {Physical Review B},
volume = {90},
number = {21},
pages = {194},
keywords = {anharmonicity, lattice dynamics, neutron, phonon, telluride},
pubstate = {published},
tppubtype = {article}
}

@article{keith_atomsim:_2010,
title = {AtomSim: web-deployed atomistic dynamics simulator},
author = {J B Keith and J R Fennick and D R Nelson and C E Junkermeier and J Y Y Lin and Chen W Li and M M McKerns and J P Lewis and B Fultz},
url = {http://scripts.iucr.org/cgi-bin/paper?S0021889810037209},
doi = {10.1107/S0021889810037209},
year = {2010},
date = {2010-11-01},
journal = {Journal of Applied Crystallography},
volume = {43},
number = {6},
pages = {1553-1559},
abstract = {AtomSim, a collection of interfaces for computational crystallography simulations, has been developed. It uses forcefield-based dynamics through physics engines such as the General Utility Lattice Program, and can be integrated into larger computational frameworks such as the Virtual Neutron Facility for processing its dynamics into scattering functions, dynamical functions etc. It is also available as a Google App Engine-hosted web-deployed interface. Examples of a quartz molecular dynamics run and a hafnium dioxide phonon calculation are presented.},
keywords = {lattice dynamics, software},
pubstate = {published},
tppubtype = {article}
}