Excitons, Electrons and Phonons in Low-dimensional Materials

Presentations

• Cryogenic Enhancement of the Phononic Four-Wave Mixing Modal Nonlinearity in AlScN/4H-SiC

  ORAL

  March 18, 2026, 12:00 PM – March 18, 2026, 12:12 PM

  Presenters

  • Aroop K Behera

    • Sandia National Laboratories

  Authors

  • Aroop K Behera

    • Sandia National Laboratories

  • Brandon Smith

    • Sandia National Laboratories

  • Xingyu Du

    • University of Pennsylvania

  • Y Deng

    • University of Arizona

  • Michael P Lilly

    • Sandia National Laboratories

  • C. Thomas Harris

    • Sandia National Laboratories

  • Roy H Olsson III

    • University of Pennsylvania

  • Matt Eichenfield

    • University of Colorado - Boulder
    • University of Arizona
    • The University of Arizona

  • Lisa Hackett

    • Sandia National Laboratories
    • Sandia National Labs

  View abstract →

• Nonthermal dynamics of the CDW in 1T-TiSe₂ revealed by time-resolved neutron scattering

  ORAL

  March 18, 2026, 12:12 PM – March 18, 2026, 12:24 PM

  Publication: K. Dharmasiri, S. S. Philip, D. Louca, S. A. Chen, M. D. Frontzek, Z. J. Morgan, and C. Hua, Long-lived dynamics of the charge density wave in TiSe₂ observed by neutron scattering, arXiv:2509.15358 [cond-mat.mtrl-sci] (2025).

  Presenters

  • Kusal S Dharmasiri

    • University of Virginia

  Authors

  • Kusal S Dharmasiri

    • University of Virginia

  • Despina A Louca

    • University of Virginia

  • Sharon S Philip

    • University of Virginia

  • Matthias D Frontzek

    • Oak Ridge National Laboratory

  • Chengyun Hua

    • Oak Ridge National Laboratory

  • Athena Chen

    • Oak Ridge National Laboratory

  • Zachary J Morgan

    • Oak Ridge National Laboratory

  View abstract →

• Nonlinear thermal and thermoelectric transport from quantum geometry

  ORAL

  March 18, 2026, 12:24 PM – March 18, 2026, 12:36 PM

  Publication: Y. Fang, et.al., arXiv:2505.16999.

  Presenters

  • Yuan Fang

    • Rice University

  Authors

  • Yuan Fang

    • Rice University

  • Shouvik Sur

    • Rice University

  • Yonglong Xie

    • Rice University

  • Qimiao Si

    • Rice University

  View abstract →

• Band-Like Transport in Low-Dimensional Ternary Chalcogenides

  ORAL

  March 18, 2026, 12:36 PM – March 18, 2026, 12:48 PM

  Publication: Y. Fu,† H. Lohan,† M. Righetto, Y.-T. Huang, S. R. Kavanagh, C.-W. Cho, S. J. Zelewski, Y. W. Woo, H. Demetriou, M. A. McLachlan, S. Heutz, B. A. Piot, D. O. Scanlon, A. Rao, L. M. Herz, A. Walsh, R. L. Z. Hoye.* Structural and Electronic Features Enabling Delocalized Charge-Carriers in CuSbSe2. Nature Communications, 2025, 16, 65.

  Presenters

  • Robert Hoye

    • Inorganic Chemistry Laboratory, University of Oxford, Oxford OX1 3QR, U. K.
    • Unviersity of Oxford

  Authors

  • Robert Hoye

    • Inorganic Chemistry Laboratory, University of Oxford, Oxford OX1 3QR, U. K.
    • Unviersity of Oxford

  View abstract →

• Nonreciprocal Perfect Coulomb Drag in Electron–Hole Bilayers: The Excitonic Diode Effect

  ORAL

  March 18, 2026, 12:48 PM – March 18, 2026, 1:00 PM

  Presenters

  • Jun-Xiao Hui

    • Tsung-Dao Lee Institute

  Authors

  • Jun-Xiao Hui

    • Tsung-Dao Lee Institute

  • Qing-Dong Jiang

    • Tsung-Dao Lee Institute, Shanghai Jiao Tong University

  • Gabriel Cardoso

    • Tsung-Dao Lee Institute, Shanghai Jiao Tong University

  View abstract →

• Proposal for exciton interferometry in transition metal dichalchogenide heterobilayers

  ORAL

  March 18, 2026, 1:00 PM – March 18, 2026, 1:12 PM

  Publication: Hong-Yi Xie, Pouyan Ghaemi, Matteo Mitrano, and Bruno Uchoa. Theory of topological exciton insulators
  and condensates in flat chern bands. Proceedings of the National Academy of Sciences, 121(35):e2401644121,
  2024.

  Presenters

  • Mara Lozano

    • University of Oklahoma

  Authors

  • Mara Lozano

    • University of Oklahoma

  • Bruno Uchoa

    • University of Oklahoma

  • Hongyi Xie

    • University of Oklahoma

  View abstract →

• Counterflow Current from Driven Magnetoexcitons in Structured Bilayers

  ORAL

  March 18, 2026, 1:12 PM – March 18, 2026, 1:24 PM

  Presenters

  • Fanuel I Mendez

    • Indiana University Bloomington

  Authors

  • Fanuel I Mendez

    • Indiana University Bloomington

  • Herbert A Fertig

    • Indiana Univ - Bloomington
    • Indiana University Bloomington

  • Luis Brey

    • ICMM, CSIC
    • Instituto de Ciencia de Materiales de Madrid, CSIC

  View abstract →

• Theoretical Modeling of Exciton Dynamics in Crystalline Phthalocyanine Thin Films

  ORAL

  March 18, 2026, 1:24 PM – March 18, 2026, 1:36 PM

  Presenters

  • Sanghita Sengupta

    • Brandeis University

  Authors

  • Sanghita Sengupta

    • Brandeis University

  • Zheng Pei

    • Brandeis University

  • Chance Lander

    • University of Oklahoma

  • Zexuan Wei

    • Brandeis University

  • Madalina Furis

    • University of Oklahoma

  • Yihan Shao

    • Brandeis University

  View abstract →

• Sum-over-exciton-states method for light induced anomalous Hall effects

  ORAL

  March 18, 2026, 1:36 PM – March 18, 2026, 1:48 PM

  Presenters

  • Weichen Tang

    • Department of Physics, University of California at Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory
    • University of California, Berkeley

  Authors

  • Weichen Tang

    • Department of Physics, University of California at Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory
    • University of California, Berkeley

  • Jiawei Ruan

    • UC Berkeley
    • Department of Physics, University of California at Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory

  • Steven G Louie

    • University of California, Berkeley
    • Department of Physics, University of California, Berkeley, CA, USA; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
    • Department of Physics, University of California at Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory

  View abstract →

• Theory for exciton polarization and confinement in moiré domains

  ORAL

  March 18, 2026, 1:48 PM – March 18, 2026, 2:00 PM

  Presenters

  • Jose Manuel Torres Lopez

    • University of Texas at Austin

  Authors

  • Jose Manuel Torres Lopez

    • University of Texas at Austin

  • DONGSEOB KIM

    • The University of Texas at Austin
    • University of Texas at Austin

  • Xiaoqin Elaine Li

    • University of Texas at Austin

  • Allan H MacDonald

    • University of Texas at Austin

  View abstract →

• Atomic-Scale Visualization of Phonon Anisotropy in Perovskite Oxides

  ORAL

  March 18, 2026, 2:00 PM – March 18, 2026, 2:12 PM

  Publication: [1] X.X. Yan, P. M. Zeiger, Y.F. Huang et al., Nature, 2025, 645: 893–899.

  Presenters

  • Xingxu Yan

    • University of California, Irvine

  Authors

  • Xingxu Yan

    • University of California, Irvine

  • Paul M Zeiger

    • Uppsala University

  • Yifeng Huang

    • University of California, Irvine

  • Ruqian Wu

    • UCI
    • University of California, Irvine

  • Ján Rusz

    • Uppsala University
    • University of Uppsala

  • Xiaoqing Pan

    • University of California, Irvine

  View abstract →

• Correlated quantum shift vector diagnoses localization of particle-hole excitations

  ORAL

  March 18, 2026, 2:12 PM – March 18, 2026, 2:24 PM

  Publication: arXiv:2507.07182

  Presenters

  • Xu Yang

    • Nanyang Technological University
    • Ohio State University

  Authors

  • Xu Yang

    • Nanyang Technological University
    • Ohio State University

  • Justin Song

    • Nanyang Technological University
    • Nanyang Technological University Singapore

  • Ajit Srivastava

    • Emory University

  View abstract →

• Experimental constraint on extreme near-field heat transfer

  ORAL

  March 18, 2026, 2:24 PM – March 18, 2026, 2:36 PM

  Presenters

  • Sai C Yelishala

    • University of Colorado Boulder

  Authors

  • Sai C Yelishala

    • University of Colorado Boulder

  • Mohammad Habibi

    • University of Colorado Boulder

  • Longji Cui

    • University of Colorado, Boulder

  View abstract →

• Phonon-mediated relaxation in nanomaterials using Boltzmann transport equation by combining Density Functional Theory based non-adiabatic molecular dynamics with many-body perturbation theory

  ORAL

  March 18, 2026, 2:36 PM – March 18, 2026, 2:48 PM

  Publication: H. Griffin, A. Kryjevski, J. Chem. Phys. 163, 134110 (2025)

  Presenters

  • Andrei B. Kryjevski

    • North Dakota State University

  Authors

  • Andrei B. Kryjevski

    • North Dakota State University

  • Hadassah B Griffin

    • North Dakota State University

  View abstract →

• Measuring Electroabsorption and Circular Dichroism of Metal Halide Perovskites While Varying Organic Layer Composition

  ORAL

  March 18, 2026, 2:48 PM – March 18, 2026, 3:00 PM

  Presenters

  • Shane LeBaron

    • Brigham Young University

  Authors

  • Shane LeBaron

    • Brigham Young University

  • John S Colton

    • Brigham Young Univeristy

  • Carter Michael Shirley

    • Brigham Young University

  View abstract →