Olivier Delaire, Associate Professor of the Thomas Lord Department of Mechanical Engineering and Materials Science  

Olivier Delaire

Office Location: 144 Hudson Hall, Box 90300, Durham, NC 27708
Email Address:

Education:
Ph.D., California Institute of Technology, 2006
M.Sc., Pennsylvania State University, 2000
Diplôme d’Ingénieur, Ecole Centrale Lyon, France, 1999

Research Description: Olivier Delaire is an expert in the field of atomic dynamics in materials, with 15-plus years of experience in both experimental and computational studies of lattice dynamics (phonons).

Recent Publications   (More Publications)

  1. Mao, C; He, X; Lin, HM; Gupta, MK; Postec, P; Lanigan-Atkins, T; Krogstad, M; Pajerowski, DM; Hong, T; Williams, TJ; Stewart, JR; Chung, DY; Kanatzidis, MG; Rosenkranz, S; Osborn, R; Delaire, O, Correlated dynamic disorder, octahedral tilts, and acoustic phonon softening in CsSnBr3 and CsPbBr3, Physical Review Materials, vol. 9 no. 6 (June, 2025) [doi]  [abs].
  2. Ding, J; Rahman, MT; Mao, C; Niedziela, JL; Bansal, D; May, AF; Abernathy, DL; Ren, Y; Zevalkink, A; Delaire, O, Atomic dynamics in MCrX2 (M=Ag,Cu;X= S,Se) across magnetic and superionic transitions, Physical Review Materials, vol. 9 no. 3 (March, 2025), American Physical Society (APS) [doi]  [abs].
  3. Fang, Z; Smith, J; Clelland, K; Tseng, KT; Wolfenstine, J; Delaire, O; Sakamoto, J; Chi, M, Ionic conduction and interfacial stability in Na1+xZr2SixP3−xO12 solid electrolytes: Past, present, and future perspectives, Applied Physics Reviews, vol. 12 no. 1 (March, 2025), AIP Publishing [doi]  [abs].
  4. Quek, A; Ouyang, N; Lin, HM; Delaire, O; Guilleminot, J, Enhancing robustness in machine-learning-accelerated molecular dynamics: A multi-model nonparametric probabilistic approach, Mechanics of Materials, vol. 202 (March, 2025), pp. 105237-105237, Elsevier BV [doi]  [abs].
  5. He, X; Gupta, MK; Abernathy, DL; Granroth, GE; Ye, F; Winn, BL; Boatner, L; Delaire, O, Resolving the dynamic correlated disorder in KTa1-xNbxO3., Proceedings of the National Academy of Sciences of the United States of America, vol. 122 no. 7 (February, 2025), pp. e2419159122 [doi]  [abs].

Highlight:

The Delaire group investigates atomistic transport processes of energy and charge, and thermodynamics in energy materials. We use a combined experimental and computational approach to understand and control microscopic energy transport for the design of next-generation materials, in particular for sustainable energy applications. Current materials of interest include superionic conductors, photovoltaics, thermoelectrics, ferroelectrics/multiferroics, and metal-insulator transitions. Our group's studies provide fundamental insights into  atomic dynamics and elementary excitations in condensed-matter systems (phonons, electrons, spins), their couplings and their effects on macroscopic properties. We probe the microscopic underpinnings of transport and thermodynamics properties by integrating neutron and x-ray scattering, optical spectroscopy, and thermal characterization, together with quantum-mechanical computer simulations.