Modifying electronic states at the nanoscale

Oxide heterostructures hold great potential for realizing new electronic states and functionalities, but probing these electronic states is often very challenging. We work to extend the applicability of RIXS to probe magnetic interactions, electronic orbitals and electron-phonon coupling in heterostructures.

Figure 1: Artwork illustrating our work measuring magnetic excitation in single layers of La2CuO4. See M. P. M. Dean et al., Nature Materials 11, 850–854 (2012).



  1. Strain-Modulated Slater-Mott Crossover of Pseudospin-Half Square-Lattice in (SrIrO3)1/(SrTiO3)1 Superlattices
    Junyi Yang, Lin Hao, Derek Meyers, Tamene Dasa, Liubin Xu, Lukas Horak, Padraic Shafer, Elke Arenholz, Gilberto Fabbris, Yongseong Choi, Daniel Haskel, Jenia Karapetrova, Jong-Woo Kim, Philip J. Ryan, Haixuan Xu, Cristian D. Batista, Mark P. M. Dean, and Jian Liu
    Phys. Rev. Lett. 124, 177601 (2020)


  1. Anomalous magnetoresistance due to longitudinal spin fluctuations in a Jeff = 1/2 Mott semiconductor
    Lin Hao, Zhentao Wang, Junyi Yang, D. Meyers, Joshua Sanchez, Gilberto Fabbris, Yongseong Choi, Jong-Woo Kim, Daniel Haskel, Philip J. Ryan, Kipton Barros, Jiun-Haw Chu, M. P. M. Dean, Cristian D. Batista, and Jian Liu
    Nature Communications 10, 5301 (2019)
  2. Novel spin-orbit coupling driven emergent states in iridate-based heterostructures
    Lin Hao, D. Meyers, M.P.M. Dean, and Jian Liu
    Journal of Physics and Chemistry of Solids 128, 39 - 53 (2019)
  3. Magnetism in iridate heterostructures leveraged by structural distortions
    Derek Meyers, Yue Cao, Gilberto Fabbris, Neil J Robinson, Lin Hao, Clayton Frederick, Nathan Traynor, Junyi Yang, Jiaqi Lin, MH Upton, D. Casa, Jong-Woo Kim, T. Gog, E. Karapetrova, Yongseong Choi, D. Haskel, P. J. Ryan, Lukas Horak, X. Liu, Jian Liu, and M. P. M. Dean
    Scientific reports 9, 4263 (2019)
  4. Strong Orbital Polarization in a Cobaltate-Titanate Oxide Heterostructure
    Sangjae Lee, Alex Taekyung Lee, Alexandru B. Georgescu, Gilberto Fabbris, Myung-Geun Han, Yimei Zhu, John W. Freeland, Ankit S. Disa, Yichen Jia, Mark P. M. Dean, Frederick J. Walker, Sohrab Ismail-Beigi, and Charles H. Ahn
    Phys. Rev. Lett. 123, 117201 (2019)
  5. Depth-Resolved Modulation of Metal–Oxygen Hybridization and Orbital Polarization across Correlated Oxide Interfaces
    Paul C. Rogge, Padraic Shafer, Gilberto Fabbris, Wen Hu, Elke Arenholz, Evguenia Karapetrova, Mark P. M. Dean, Robert J. Green, and Steven J. May
    Advanced Materials 31, 1902364 (2019)


  1. Giant magnetic response of a two-dimensional antiferromagnet
    Lin Hao, D Meyers, Hidemaro Suwa, Junyi Yang, Clayton Frederick, Tamene R Dasa, Gilberto Fabbris, Lukas Horak, Dominik Kriegner, Yongseong Choi, Jong-Woo Kim, Daniel Haskel, Philip J. Ryan, Haixuan Xu, Cristian D. Batista, M. P. M. Dean, and Jian Liu
    Nature Physics 14, 806 (2018)
    [BNL Press Release] [UTK Press Release] [ANL Highlight]
  2. Emergent c-axis magnetic helix in manganite-nickelate superlattices
    Gilberto Fabbris, N Jaouen, D Meyers, J Feng, JD Hoffman, R Sutarto, SG Chiuzbăian, A Bhattacharya, and MPM Dean
    Phys. Rev. B 98, 180401 (2018)
  3. Decoupling carrier concentration and electron-phonon coupling in oxide heterostructures observed with resonant inelastic x-ray scattering
    Derek Meyers, Ken Nakatsukasa, Sai Mu, Lin Hao, Junyi Yang, Yue Cao, G Fabbris, Hu Miao, J Pelliciari, D McNally, M. Dantz, E. Paris, E. Karapetrova, Yongseong Choi, D. Haskel, P. Shafer, E. Arenholz, Thorsten Schmitt, Tom Berlijn, S. Johnston, Jian Liu, and M. P. M. Dean
    Phys. Rev. Lett. 121, 236802 (2018)


  1. Two-dimensional jeff= 1/2 antiferromagnetic insulator unraveled from interlayer exchange coupling in artificial perovskite iridate superlattices
    Lin Hao, Derek Meyers, Clayton Frederick, Gilberto Fabbris, Junyi Yang, Nathan Traynor, Lukas Horak, Dominik Kriegner, Yongseong Choi, Jong-Woo Kim, Daniel Haskel, Phil J. Ryan, M. P. M. Dean, and Jian Liu
    Phys. Rev. Lett. 119, 027204 (2017)


  1. Orbital engineering in nickelate heterostructures driven by anisotropic oxygen hybridization rather than orbital energy levels
    G Fabbris, D Meyers, J Okamoto, J Pelliciari, AS Disa, Y Huang, Z-Y Chen, WB Wu, CT Chen, S Ismail-Beigi, C. H. Ahn, F. J. Walker, D. J. Huang, T. Schmitt, and M. P. M. Dean
    Phys. Rev. Lett. 117, 147401 (2016)
  2. Oscillatory noncollinear magnetism induced by interfacial charge transfer in superlattices composed of metallic oxides
    Jason D Hoffman, Brian J Kirby, Jihwan Kwon, Gilberto Fabbris, D Meyers, John W Freeland, Ivar Martin, Olle G Heinonen, Paul Steadman, Hua Zhou, Christian M. Schlepütz, Mark P. M. Dean, Suzanne G. E. Velthuis, Jian-Min Zuo, and Anand Bhattacharya
    Phys. Rev. X 6, 041038 (2016)