Charge density waves

Charge density waves are periodic modulations in the electronic density of states in materials. We are studying the formation mechanisms of these states by measuring CDW excitations with inelastic scattering and studying domain formation and dynamics with coherent x-rays.

Figure 1: An illustration of measuring collective CDW excitations with RIXS taken from our recent paper H. Miao et al., PRX 9, 031042 (2019).



  1. Electronic Character of Charge Order in Square-Planar Low-Valence Nickelates
    Y. Shen, J. Sears, G. Fabbris, J. Li, J. Pelliciari, M. Mitrano, W. He, Junjie Zhang, J. F. Mitchell, V. Bisogni, M. R. Norman, S. Johnston, and M. P. M. Dean
    Phys. Rev. X 13, 011021 (2023)
    [BNL Press Release]


  1. Charge Condensation and Lattice Coupling Drives Stripe Formation in Nickelates
    Y. Shen, G. Fabbris, H. Miao, Y. Cao, D. Meyers, D. G. Mazzone, T. Assefa, X. M. Chen, K. Kisslinger, D. Prabhakaran, A. T. Boothroyd, J. M. Tranquada, W. Hu, A. M. Barbour, S. B. Wilkins, C. Mazzoli, I. K. Robinson, and M. P. M. Dean
    Phys. Rev. Lett. 126, 177601 (2021)
  2. Charge density waves in cuprate superconductors beyond the critical doping
    H. Miao, G. Fabbris, R. J. Koch, D. G. Mazzone, C. S. Nelson, R. Acevedo-Esteves, G. D. Gu, Y. Li, T. Yilimaz, K. Kaznatcheev, E. Vescovo, M. Oda, T. Kurosawa, N. Momono, T. Assefa, I. K. Robinson, E. S. Bozin, J. M. Tranquada, P. D. Johnson, and M. P. M. Dean
    npj Quantum Materials 6, 31 (2021)


  1. Strongly Correlated Charge Density Wave in La2-xSrxCuO4 Evidenced by Doping-Dependent Phonon Anomaly
    J. Q. Lin, H. Miao, D. G. Mazzone, G. D. Gu, A. Nag, A. C. Walters, M. Garcı́a-Fernández, A. Barbour, J. Pelliciari, I. Jarrige, M. Oda, K. Kurosawa, N. Momono, Ke-Jin Zhou, V. Bisogni, X. Liu, and M. P. M. Dean
    Phys. Rev. Lett. 124, 207005 (2020)
    [BNL Press Release]


  1. Charge density wave memory in a cuprate superconductor
    XM Chen, C Mazzoli, Y Cao, V Thampy, AM Barbour, W Hu, M Lu, TA Assefa, H Miao, G Fabbris, G. D. Gu, J. M. Tranquada, M. P. M. Dean, S. B. Wilkins, and I. K. Robinson
    Nature communications 10, 1435 (2019)


  1. Incommensurate phonon anomaly and the nature of charge density waves in cuprates
    Hu Miao, D Ishikawa, Rolf Heid, Matthieu Le Tacon, Gilberto Fabbris, Derek Meyers, GD Gu, AQR Baron, and MPM Dean
    Phys. Rev. X 8, 011008 (2018)
    [Spring8 Research Highlight]


  1. High-temperature charge density wave correlations in La1.875Ba0.125CuO4 without spin–charge locking
    H Miao, José Lorenzana, Götz Seibold, YY Peng, A Amorese, F Yakhou-Harris, K Kummer, NB Brookes, RM Konik, V Thampy, G. D. Gu, G. Ghiringhelli, L. Braicovich, and M. P. M. Dean
    Proceedings of the National Academy of Sciences 114, 12430–12435 (2017)
    [BNL Press Release]
  2. Doping dependence of collective spin and orbital excitations in the Spin-1 quantum antiferromagnet La2-xSrxNiO4 Observed by X rays
    G Fabbris, D Meyers, L Xu, VM Katukuri, L Hozoi, X Liu, ZY Chen, J Okamoto, T Schmitt, AC Uldry, B. Delley, G. D. Gu, D. Prabhakaran, A. T. Boothroyd, J. Brink, D. J. Huang, and M. P. M. Dean
    Phys. Rev. Lett. 118, (2017)


  1. Remarkable stability of charge density wave order in La2-xBaxCuO4
    XM Chen, V Thampy, C Mazzoli, AM Barbour, H Miao, GD Gu, Y Cao, JM Tranquada, MPM Dean, and SB Wilkins
    Phys. Rev. Lett. 117, 167001 (2016)
    [BNL Press Release]