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
Office Phone: +1 919 660 5310
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).

Teaching (Spring 2024):

  • Me 490.03, Special topics Synopsis
    Hudson 222, TuTh 03:05 PM-04:20 PM

Recent Publications   (More Publications)

  1. de la Peña Muñoz, GA; Correa, AA; Yang, S; Delaire, O; Huang, Y; Johnson, AS; Katayama, T; Krapivin, V; Pastor, E; Reis, DA; Teitelbaum, S; Vidas, L; Wall, S; Trigo, M, Ultrafast lattice disordering can be accelerated by electronic collisional forces, Nature Physics, vol. 19 no. 10 (October, 2023), pp. 1489-1494, Springer Science and Business Media LLC [doi]  [abs].
  2. Huang, Y; Teitelbaum, S; Yang, S; De la Peña, G; Sato, T; Chollet, M; Zhu, D; Niedziela, JL; Bansal, D; May, AF; Lindenberg, AM; Delaire, O; Trigo, M; Reis, DA, Nonthermal Bonding Origin of a Novel Photoexcited Lattice Instability in SnSe., Physical review letters, vol. 131 no. 15 (October, 2023), pp. 156902 [doi]  [abs].
  3. Gupta, MK; Kumar, S; Mittal, R; Mishra, SK; Rols, S; Delaire, O; Thamizhavel, A; Sastry, PU; Chaplot, SL, Distinct anharmonic characteristics of phonon-driven lattice thermal conductivity and thermal expansion in bulk MoSe2 and WSe2, Journal of Materials Chemistry A, vol. 11 no. 40 (September, 2023), pp. 21864-21873, Royal Society of Chemistry (RSC) [doi]  [abs].
  4. Ren, Q; Gupta, MK; Jin, M; Ding, J; Wu, J; Chen, Z; Lin, S; Fabelo, O; Rodríguez-Velamazán, JA; Kofu, M; Nakajima, K; Wolf, M; Zhu, F; Wang, J; Cheng, Z; Wang, G; Tong, X; Pei, Y; Delaire, O; Ma, J, Extreme phonon anharmonicity underpins superionic diffusion and ultralow thermal conductivity in argyrodite Ag8SnSe6., Nature materials, vol. 22 no. 8 (August, 2023), pp. 999-1006 [doi]  [abs].
  5. Huang, Y; Teitelbaum, S; Yang, S; na, GDLP; Chollet, TSM; Zhu, D; Niedziela, JL; Bansal, D; May, AF; Lindenberg, AM; Delaire, O; Trigo, M; Reis, DA, Determination of nonthermal bonding origin of a novel photoexcited lattice instability in SnSe (January, Preprint, 2023) .

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.