Recent News

Welcome Harvey to our group, working on solid-state batteries

September 18, 2023

Welcome Harvey Hongwei Zhang to our group! Harvey just started his MS degree at Duke and is interested in novel materials for future solid-state batteries.

Thanks to REU student Cecelia Barr

September 18, 2023

We had the privilege of hosting Cecelia Barr, undergraduate student from Northwestern University, to work in our group this summer as part of the Triangle REU program on hybrid organic-inorganic perovskite materials.

New publications in Nature Materials and Nature Physics

September 18, 2023

Our group recently published new papers investigating atomic dynamics in two exciting classes of materials!

Congratulations Hung-Min on passing your preliminary exam!

April 6, 2023

Yesterday, during his preliminary exam, he gave a great presentation detailing his research on Na superionic conductors. We look forward to seeing what else you achieve as the group's newest PhD candidate!

Welcome Aiden, Kevin, Patrick, Tianhao and Tyler!

September 21, 2022

The Delaire group is excited to be welcoming a roster of talented new grad students this Fall: Welcome Aiden, Kevin, Patrick, Tianhao and Tyler!!!

Congratulations Jingxuan, Shan and Xing on Graduation!!!

September 14, 2022

Congratulations to Jingxuan Ding, Shan Yang and Xing He on successfully defending your PhD and graduating this past Spring/Summer!!! (photo: in front of Duke Chapel with former PhD student Tyson Lanigan-Atkins)

We look forward to your future achievements - come back to visit us!

Mayank's paper on superionic argyrodite Cu7PSe6

September 14, 2022

Mayank's paper investigating fast ion diffusion in argyrodite Cu7PSe6 with DFT, machine-learning MD, and neutron scattering was published in Advanced Energy Materials earlier this summer. Congrats Mayank!

Bander is Energy Data Analytics Ph.D. Fellow

March 15, 2022

Congratulations Bander on getting selected to the 2022 cohort of Energy Data Analytics Ph.D. Fellows!

Discovery of unusual two-dimensional atomic fluctuations in photovoltaic halide perovskite materials

November 4, 2021

Our group, in collaboration with Argonne National Lab, Oak Ridge National Lab and Northwestern University recently reported the discovery of unusual two-dimensional atomic fluctuations in CsPbBr3 in Nature Materials:... read more

Congratulations Dr. Tyson Lanigan-Atkins!

November 4, 2021

Congratulations to Tyson for successfully defending this PhD thesis! (belated website update) Congrats Dr. Lanigan-Atkins and looking forward to hearing about your next achievements. Come back and visit us :)

Origins of ultralow thermal conductivity in novel Mg-based thermoelectrics

November 4, 2021

Our study of the atomistic origins of the beneficial ultralow thermal conductivity in novel Mg-based thermoelectrics with Zintl structure Mg3Sb2 and Mg3Bi2 was recently published in Science Advances. Congratulations to Jingxuan who led this study!

Study of anharmonic phonons in thermoelectrics SnS and SnSe published in Nature Communications

September 30, 2020

Our study of anharmonic phonons in the thermoelectric compounds SnS and SnSe across their high-temperature phase transition was
published in Nature Communications. Congratulations Tyson and Shan! read more

Paper on FeS published in Nature Physics

April 14, 2020

Our paper investigating the role of phonons and magnons in the metal-insulator transition in hexagonal iron sulfide was published in Nature Physics:

Study of phonon anharmonicity in SrTiO3 published in Phys. Rev. Letters

April 9, 2020

Our paper on anharmonic phonons in the quantum paraelectric material SrTiO3 was published online in Physical Review Letters. Congrats to Xing!

Link to paper

Paper on phonons in superionics in PNAS

February 6, 2020

Our new paper investigating phonons, atomic diffusion and thermal transport in the superionic conductor AgCrSe2 is published online in PNAS. Congratulations Jingxuan!

Olivier attended IXS2019 conference in Stony Brook

June 29, 2019

Olivier attended the international conference on Inelastic X-ray Scattering IXS2019 in Stony Brook and gave a plenary talk:

"Studies of Phonons with Inelastic X-ray / Neutron Scattering and First-Principles Simulations"

Neutron scattering user meeting at ORNL

June 29, 2019

Olivier, Jingxuan, Xing and Tyson attended the SNS-HFIR neutron scattering user meeting at ORNL:

New Science paper on ultrafast transition in photoexcited VO2

November 1, 2018

Our new paper investigating the ultrafast response of the atomic structure of VO2 with pump-probe experiments at the LCLS x-ray free-electron laser and first-principles simulations is published in Science:

New Nature Physics paper on anharmonic phonons in superionic CuCrSe2

October 8, 2018

Our paper investigating anharmonic phonons in CuCrSe2 with inelastic neutron and x-ray scattering and first-principles simulations is now online in Nature Physics:

New paper on YMnO3 phonon anharmonicity in Nature Communications

January 2, 2018

Our new paper investigating the momentum-resolved phonon dispersions in the multiferroic material YMnO3 was published in Nature Communications:

Paper on phonon dispersions and diffuse scattering in (Na,Bi)TiO3-BaTiO3 accepted in Phys Rev B

October 18, 2017

Our paper studying the phonon dynamics and diffuse scattering in the relaxor ferroelectric (Na,Bi)TiO3 - BaTiO3 across the morphotropic phase boundary was recently accepted for publication in Phys Rev B. Congratulations to Chengtao and Dipanshu!

Congratulations Dipanshu on new PRB paper!

February 9, 2017

Congratulations Dipanshu on new paper published in Phys Rev B: this study investigates the lattice dynamics and thermal transport in the multiferroic compound CuCrO2, with a combination of scattering experiments, transport measurements, and first-principles simulations:

New paper on thermal and electrical transport in VO2 published in Science

January 27, 2017

Our study of nanoscale thermal and electrical conductivities across the fascinating metal-insulator transition in vanadium dioxide (VO2) was just published in Science! This work was in collaboration with UC Berkeley/Lawrence Berkeley Lab and Oak Ridge National Lab.

Welcome Jingxuan to our group!

January 26, 2017

Jingxuan has recently joined the Delaire group. He comes from Tsinghua where he obtained a Master's in Materials Science and Engineering. Welcome Jingxuan!

New paper on origin of incipient ferroelectricity in PbTe published in Nature Communications

August 18, 2016

A new paper was published in Nature Communications in collaboration with SLAC/Stanford and ORNL.